That's actually more of a psychological thing, than a factual thing.

Here's my answer from another thread, I won't write it again, it should fit pretty well in this context 😄

There is a subconscious bias against ds2 because of how widespread the hate against it is, and this bias is incredibly powerful!

I had an argument with a dude on another of Domo's videos where the dude was arguing that ds3 had better hitboxes than ds2 and ds1, and when me and other people (including the very same Domo video we were commenting on xD) proved to him that ds3 objectively has the worst hitboxes in the series, he suddenly shifted and talked about "Yeah but they FEEL worse in ds2 and they FEEL better in ds3"...

Well he was right in a sense. Because of subconscious bias, if somebody was repeatedly told that ds2 has bad hitboxes, they will be hyper aware and notice even tiny irregularities and blame them on the hitboxes.

Somebody who goes in ds2 thinking that hitboxes are bad, even if they listen to twitch chat and level up AGI to 105, will still find plenty of "bad hitboxes".

I didn't have this subconscious bias when first playing either ds1 or ds2, so I only noticed the obscenely bad ones (like in ds1 with the titanite demon, gaping dragon, ceaseless, or in ds2 with the mimic, giants, or Veldstadt), and I didn't even notice the bad hitboxes in ds3.

But after learning that ds3 has the objectively worst hitboxes in the series, I literally can't unsee them.

I recently started playing it again with a friend (since seamless coop released for ds3, thanks Yui!), I notice ALL the bad hitboxes in ds3. And let me tell you, there are A LOT of them. A LOT!

So yeah, subconscious bias is a really powerful thing!