I agree with your take on this, and wanted to offer another (possibly naive) take on this narrative:
I could see a prosecutor saying:
1994 law banned named AW’s going forward, which didn’t explicitly state copycats / duplicates, but it’s understandable they indeed fall under this ban.
2016: Healey’s first warning / interpretation of the 1994 law, which is preliminarily supported by the rejected injunction in NAGR v. Healey by the 1st circuit court. (Basically “we told you once in 1994, we are telling you again in 2016.”)
2024: New forthcoming law; SAFER, to be signed into law. The reasoning for the 2016 grandfather date could be seen as “we banned this in 1994, albeit a bit grey or muddy, but we are going to cut you a break and grandfather 22 years later.”
Maybe a bit of a stretch, your thoughts?
I'll throw the curve ball. Because they have nothing else to anchor it to by way of backdating. The 2016 edict, not law, put forth by Healy in her interpretation "what the 1994 AWB really means (to me)", though millions of people, LE's, judicial's, the hot dog guy at Fenway were in agreement as to what it meant but were in error as she is truly remarkable, truly, almost omnipotent, just ask her. I did, she said it was so. In reality (mine anyway), everything manufactured forward including today that meets the compliance criteria for the AWB should still be fine. The biggest reason some/most FFL's don't deal with it is because the state has bottomless pockets to use as a cudgel, ours, where mom and pop places squeak out a living. If that fails, send in the inspectors. There's more than one way to skin a cat, at least according to Ho Lee Fuk's cookbook
Roadside Cuisine (his motto is Remington or radials, meats all the same). Making something illegal that was legal is going to be a hard sell when the rubber hits the road, squirrel, chipmunk, groundhog, etc., If it does move forward, I believe all things prior would be grandfathered.
You know, it's okay to be apprehensive, nervous, unsure, even frightened at times about what the possibilities may hold in the future. All's that really matters is what you do with it.