Interesting. Modelling skills lost....Absolutely. Doesn't mean the end of the hobby or but does create issues. Saw a while back on a local Facebook group a guy was asking for help/pay someone to change out the throttle servo on their giant scale Yak because they didn't know how. I fly with a group of younger guys that learned to fly on foamies and bind n fly stuff. There is a different mentality with them. They don't really care if they crash. When I was a kid learning to fly I didn't want to crash because it took a long time to get another plane ready. Not a barrier anymore. Don't get me wrong, these guys aren't dangerous, they just push things and don't care. They are having fun, aren't endangering property or people so it is fun to watch most times. As long as this type of attitude does not migrate to turbine flying it isn't a big deal.

As far as gaining the skills to fly their next jet, that will always be an issue. A Shockjet doesn't prepare you for an F4. The hope is that by requiring a waiver most guys will at least meet some people in their area that can give them pointers and can help them when they move on to more complex aircraft.