Jay Sata
This changes very little when it comes to as you call them the multi thousand hour PA28's
The reason that these aircraft are multi thousand hour is they are robust and reliable as are the serious home build aircraft like the Vans.
I have seen a number of the new to the market lighter aircraft with more airframe problems after 250 hours than. 13000 hour C152.
The difference in cost between the serous home builds that will get IFR & night approval and certified aircraft is not that great so this is a sensible step not a revolution.