Concorde's Safety Flight System is in some ways similar to MCAS, in that it'll nudge elevons itself.

I don't know if Airbus would meet certification requirements in direct control law. I suspect not. Definitely not in mechanical control law.

Just like more conventional jetliners wouldn't meet certification guidelines without all of their control rigging, counterweights, and trim systems. It's just now tempting to make adjustments to those systems with software instead of fiddling with everything else.