Using MySQL as poster child isn't accurate nor relevant. Ghotscript started the model and while MySQL adopted it, most of the current revenue for MySQL are from support subscriptions and has been for a very long time.
Besides your argument is too simplistic. BSD communities don't prefer any copyleft licenses at all so even GPLv2 was very divisive for them. So we have to ask ourselves, what is the target of the license and which communities are we helping?