I own a Mini American, so of course I'm entirely biased.

I think there's a huge difference between the doodle mutts and the MAS. The MAS, as you said, is a recognized breed and aren't a hybrid dog in any sense at this point. There are many excellent MAS breeders that have generations of health-tested, champion dogs, which can't be said for doodle breeders.

I know the "mini aussie" breed seems to be gaining in popularity, so I hope that doesn't pour lots of poorly-bred dogs into people's homes (though I see that happening already). 😔