Well, it might work but you'd still need to get people to playtest your prototype either way.
Well said.
If one frequently releases prototypes, one also needs a lot people frequently testing those prototypes.
And the first does not beget the second. It is the other way round.
I suppose that settles it.
Hire your younger nieces and nephews to play test your game.
But in all seriousness, so long as it's not a patch and the game is fun to play, I don't see it being too big an issue. Outside of baiting your fanbase of a release date.