Well, I've done my fair share of complaining about it, nothing we can do until the next core build (at least according to Ondra).
As Juraj mentioned here and I did in the main thread - this is important. In scenes where you have some sort of a frosted window (bathrooms), skylight (lobbies, etc) or a roof or whatever you're basically f**ked because there is no way to achieve correct speculars, even with certain fudges. You either give up the lighting or the glass.
This is a scene breaker as far as I'm concerned.