Call me cynical.
1) They apparently proposed something similar last year (no solo climbs, have to have summited a 7000m peak). Seeing as this is a proposal (as was that...), I'm not getting my hopes up.
2) IF (big if) the deal is you still need to apply for your Everest permit well ahead of time, AND the Nepalese government does not pull some malarkey such as "if you complete the 6500m hike, then this Everest permit we're going to give you at the same time will be valid." That will solve nothing, as outfitters will simply take you up an easier 6500m peak in the region, and then whisk you up to base camp.
3) I've seen differing versions of the wording in news reports, but several give the gist that EACH climber must their own Sherpa. IF that's true, ummm, not helping with the crowding, but maybe it's more about getting additional work available for the Sherpas.
4) Likewise with the reports, I've seen a couple that say that the 6500m qualifier must be in Nepal. More fees for the government, and that would work well in relation to point 2, with one stop shopping.
Another thing I don't like is "no solo climbs, period." Sorry, but there should be exceptions for the exceptional (e.g., Messner, Steck) to do the exceptional. They know and accept the risks probably more than most people on the mountains.
Normally I like to go to the source documentation for such things, but the government website doesn't seem to be much help, and I'm sure it's is written in their language, not ours. I'll be curious to see how this all shakes out.