The problem is that an ISP could buy super-suite and then give away the powerstore for free to any customers. This is exactly what happened to cause the problem, so unfortunately I don't think this fixes that particular issue which caused us to limit the license in the first place.
We needed legal grounds to stop someone that does this in particular. That is why we changed the license... because it happened.
I do agree with Les though. A non-developer reselling the powerstore without any knowledge of how to fix issues is not doing their clients a service and could incur some liability if not careful with the contracts they agree to.
I don't mind the restriction, but since we price things to recover our costs mostly, this would limit our audience and potentially raise the price of the powerstore as well.
It is unlikely we will add that restriction for that reason, and because some of our solution customers don't own Dreamweaver but are still perfectly able php developers. I don't think we can cut them out of the picture at this point, or ask them to shell out money for extensions they couldn't even use.
We could dramatically discount the solution for super suite owners or subscription participants, and modestly raise it for users that don't own our extensions, but that still won't solve the licensing issue people are talking about, since we would still have to give domain licenses and not developer licenses to prevent an ISP from offering it as a free value add.