Hey Sven, I hadn't updated my drivers in a long time and when I did, the crashes began to happen. I went back a few driver versions and they kept happening and as I'd forgotten the number of my previous ones, so I thought back to the first Crimson drivers that I'd remembered working fine (15.12) and went back to them. That's the only reason I ended up with those ones. There are probably more recent versions that still work and your find is probably correct on that AMD fix note.
I also came across the ClockBlocker post, but haven't tried it yet. I might give that a go as I'm actually running the latest drivers despite the crashes.