Surely not right? Sentinels pretty much only hold major relevance in Valorant, which isn't even the biggest FPS at the moment let alone biggest esport. Meanwhile there's orgs that have teams in at least 10 major esports including Valorant
I've watched CS since 2015, val since 2021. I'd say historically (and anecdotally) it goes:
Cloud9 (feels like they've fallen off in terms of fan base in recent years)
100T (probably current leader in fanbase and # of teams across games)
NRG (originally a T2 org imo, rose up after val released)
Evil Geniuses (been around as long as NiP in CS, hence the name; ran by corporate lobbyists who know nothing about eSports now, poor reputation in terms of player treatment, however, one of the oldest names in NA eSports)
I could see SEN being top 5, but optic gaming or faze probably outrank them. It would just be off their early val success and because of TenZ