I disagree with most points personally but will explain my reasoning, of course this is all in my opinion:
My last DeS playthrough was around February, gonna split up the post so it's easier to read:
-Never needed to grind on grass, just get the right equipment, and you'll get grass naturally anyway. I always build for light/medium armour in DeS with an emphasis on dodging and two-handing, using abjudicator's shield for HP regen, no need for grass farming after that.
-Tunnels never bothered me with camera angles (memorized where every enemy is, so it isn't an issue), it's a problem in all the games at some point, so I take it as part of the series.
-Item burden is annoying but Stockpile Thomas exists and if you mean equipment, meh, argument can be made for Dark Souls as well (the ring of great/herculean strength exist as well).
-World Tendency is best controlled by playing offline, and learning how to game it. If you're always in soul form you never affected it, bring it up to pure white first by beating the boss/dragons/etc, an hero in the nexus, then beat the next boss, repeat, etc, do all pure white events, use stones of ephemeral eyes to revive and kill yourself until it's black/kill the npcs in body form, etc. There's guides out there that tell you how to do it, it only sucks the first time when you have no idea or if you play online and let the servers fuck it up. The tendency doesn't shift until you return to the nexus, so you can do all the events of PW then move back into PB and do all PB events.
- Grinding - This is the one I'll give for sure. There's no arguing for the grind needed for upgrade stones, it's the worst in the series, right next to Bloodborne's Chalice Dungeons. Still you don't need a fully upgraded weapon to beat the game, crystal lizards help a lot.
- Falling "system" - What are you referring to here? Platforming has always been shit in souls, always will be. If you mean Character tendency, meh only matters for very specific weapons/optional quest and very specific stats that only really matter in PvP (don't need to worry about it to beat the game).
- The ledge thing - Also agreed here, it's a silly inconsistency.
It's got it's flaws but I think they're really not as bad as they're made out to be in general.
The second half of DaS will always be shittier than the first half, DaS2 will always be the shittiest because it's out of place design wise and gameplay wise, DaS3 has potential but is the middling game since it attempts to use the best things but falls flat (BB level design philosophy, DaS weapon variety, PvP system that misses on both fronts because it couldn't decide to be one or the other, etc), BB lacks content and variety and can be grindy too (Chalice Dungeons).
Yeah the linearity is a big bite but from what I've read in the Miyazaki interview, a lot of more open level design is planned as well as gothic themes. BB did large open areas better (Forbidden Woods was amazing for this), and I'm hoping to at least see that with the new DaS3 DLC. Here's to hoping it's available at an earlier point in the game too, so it adds branching paths.
This is why I still prefer DeS, you get to take the game any way you want and don't have to have a specific starting item (Master Key) to do it, DaS as well but the latter half is so boring to me at this point I never bother going past AotA after O&S as stated previously.
Where did I say that? Though, for a first time player I can see why he had problems believing you don't need summons to do it. I never did, but I had DeS under my belt, well over 30 playthroughs.
I kinda wish there was poise but done a bit differently so you got better consistency. Like a system where sets give you more poise than individual pieces, in increments based off the number of armor pieces (2 parts of elite knight=poise bonus 1, 3=poise bonus 2, etc). On top of this, it'd give a bonus for consistent colour themes of armor, that way if everyone goes cookie cutter, at least they look good doing it rather than having our havel arms and legs mixed with an assortment of sets, or giantdads with lightning claymores, or any other flavor of the month/meta build. Would be cool if they expounded on the idea too, sets that give minor boosts with more pieces (stamina regen, equip weight reduction, etc). Of course only if they could balance it right. The lack of poise is a different kind of cancer altogether.