Everyone was playing Dante because he was new, not because he was that broken to begin with, I feel like the usage stats we're just extremely big but he quite literally has just been around for a week, feels way too early to nerf or make conclusions, genuinely feels bad for the people who bought him for Platinum or even worse, the 15$ bundle.
Also Crowd Control was just already massively disadvantaged if you are playing a kill frame which basically has been every single new frame release, there was seriously no need to beat a dead horse and destroy CC even more..
--
Edit: Dante being released a week ago on average means that most people if they played and did not have other responsibilities in real life or a job got him only like 3 days ago because of craft times, excluding all of the people who might have rushed or bought him, he got nerfed for basically 3 days of stats for frame usage.. if you have a job then this playtime is even less.