Before the MAX 8 was grounded, it had well over 2,000,000 hours of flight time on 387 aircraft performing 8,600 flights/week for 56 airlines [1]. Two out of 800,000+ flights crashed due to MCAS taking input from a broken AoA sensor, related to the poor maintenance of the airlines, and poor training by the airline and possibly pilot error.
Imagine the level of detail of scrutiny the MAX 8 is currently undergoing. I'll wager it'll have been the most scrutinized aircraft to have ever flown once it's re-certified, if not the safest. Plus, everyone knows about MCAS now so a crash due to it misbehaving in the case of a _double_ AoA vane failure is incredibly unlikely now.
So I think the fear is still illogical.
[0] https://www.economist.com/graphic-detail/2013/02/14/danger-o...
I have no problem at all with flying and do it regularly (as recently as yesterday, on a 737-800 no less) but I wouldn't set foot on a MAX, even if I was assured that the fault was fixed.