I believe that, 15 years ago was peak deadmau5, skrillex, dubstep explosion, EDC expanding everywhere. No way globally its more popular now then it was in the 2010s

It's definitely more popular now. Unless you're still deeply in the scene you wouldn't see it, but there are so many massive acts now, far more than there were back then, and niche genres have become much more massive. E.g. techno artists can draw massive crowds and they never were doing that in the 2010s.

I was highly confused by that as well. EDM is (gladly) pretty much dead in the 'clubbing' scene I am in.

I mean music festivals in the US are booming as well. EDC attendance more than doubled last year.