There are several gradations more security we could specify if we relaxed the constraint that ordinary non-technical activists be able to reliably do things.

The level of protection you're getting here is from targeted non-state attackers, ambient opportunistic state-level actors, and non-specialist law enforcement. Some of this stuff would have helped Ross Ulbricht (I mean that non-normatively), for instance.

Google "you're gonna get Mossaded" for fuller picture of what we can expect for current state of the art against targeted state-level attackers.