For what it's worth, Hubbell introduced both completely self-testing 15A and 20A GFCI receptacles and 20A blank-face devices this year with their Home Select line. These devices continuously self-test once every 60-seconds and also have the standard reverse wiring and Smart Lock type protection. Just as with anything else, I'm sure most other manufactures will soon follow with their own offerings.
I would probably make more sense all around for the NEC to just require all future GFCI receptacle and blank-face devices to be self-testing than to follow through with this misguided "readily accessible" change, at least in IMO, anyway.
