If its something you care about, you should not be making your choices on the basis of marketing splashes and you should certainly not need your email provider to explain Tor to you.
I want the benefits without being a mechanic. And I'm willing to pay money for it. Lots of money.
Proper Opsec for dissidents requires multiple layers and technologies and simply cannot rely on a single vendor. Any proper company accepting credit card payments is going to be subject to court orders and there are limits to their ability to resist them.
Protonmail has taken extraordinary measures to limit their exposure to those risks but anyone who is assuming they can e.g. be an enviro-terrorist or CCP dissident and be safe solely because they use Protonmail is terribly naive and ignorant..