I can see complaining about it if the game's design is affected by the changes. For example, the addition of compass/map markers greatly affects quest design.

It's also why imo some of elden ring's bosses suck if you try to solo them - they're designed with summons, spirits, and overleveling in consideration.

On the flipside it seems like the boss design in sekiro gets a lot of praise. I'm playing through sekiro now and don't have an opinion on it yet (though the combat does feel very good so far).

I'm not a git gud person (I'm quite the noob at souls games) though, and I hope they continue to make their games more accessible. But I understand how veteran fans of their games might be concerned about changes that may affect how they like to play.