Quick question: is the GamePress attacker tier list still a good reference for what to aim for?

I've been playing since launch, but never really bothered with the old gym system (minority team player in a populated area). For the new gym system, I've read on TSR that defenders largely don't matter anymore (because there's no benefit to holding a gym for longer than you need to). What about for attackers? Should I just make sure I have Pokemon with STAB moves across many types, or is there more nuance to this? I would imagine that raids are fairly similar, although I've seen posts on here that cover raids but not gyms. Thanks!