I liked the possibility of more teams participating; I'm watching practically all the games and having a lot of fun. I saw someone mention the water breaks, I don't see any problem with that, basketball also has breaks that can be requested, I don't think that negatively interferes with the matches or the cup in general.
I don't consider water breaks a game changer because it has always been a thing in football competitions mostly when the temperature is hot.
I loved the fact of seeing unbelievable teams fight for points and even hold off the bigger teams to a draw sometimes even goalless like the Belgium vs Iran match, we also have the Cabo Verde vs Uruguay and even Haiti vs Scotland draw. No one expected this and I lost bets on this matches because I went for a straight win in one instance and an over and under odds line in some others of which became losses.
It shows football is more of a global phenomenon than it used to be back then and having 12 groups of 4 teams each made each team settle in well and play to their best, instead of the normal rush that sees many off after two weeks of just being in the competition.