Guess what happened to me just now? 
I imported a STP file, right-clicked on the blocks filter, drag selected across the entire view, and then exploded…
Hey, turns out it’s even repeatable:
EDIT: Oh, and now I can’t right-click to get back to the previous filter selection… the “new” V8 UI sure is just fantastic! 
EDIT 2: Ah, the above was this behavior which is still in there, apparently. Great. Still staying on V7 then.