I don't quite see why the name "National Gardening Association" would be perceived as old and stuffy... or why it would sound like it is strictly for U.S. gardeners
It seems to me that this has only expanded the scope of ATP, with more info available and more of an audience to share it. Nothing stays the same forever... a lot of us here have been through a lot already with Dave and Trish and every change has turned out for the better; I don't see any reason to expect that won't be the case this time.