If anything it wasn't judged harshly enough.
Fantastic technical achievement, yes, but fucking boring to play. If you were the kind of person who had fond memories of putting on the all weapons cheat and taking turns with friends seeing who could last longest at high wanted levels, GTA 4 was such a downgrade gameplay wise since you spent a lot of time watching TV, taking your cousin bowling, taking your girlfriend to watch cabaret.
Saints Row 2 even made fun of it.
https://youtube.com/watch?v=oKNp13NyRts
Then there was the plot. Maybe it gets better later, but there's a reason the term "ludonarrative dissonance" became the buzzword of the day. You were this mopey immigrant that was overwhelmed with guilt, only to immediately go out, steal cars, and run over some old ladies. That's assuming the missions were about doing fun crimes and not shoving you into the boring side content like shopping for clothes or setting up dating profiles.
Supposedly this got better with the biker DLC that allowed you to be a villain, made bikes viable instead of a deathtrap, and seriously cut back on all the social bullshit, but I checked out by then.
This might explain why I liked Saints Row 3 even though a lot of people say it peaked with 2.