I didn’t even realize this was an issue - I was waiting until my next payday to purchase this, and this seems like a good thing to hold off until fixed.
Controller is just fine for our 4-player party. Having played Divinity on PC, I know kb+m will be easier but I didn't think controller was particularly restrictive.
I know Larian recommends enabling cross-save as a backup for your saves but it resulted in rather frequent crashing so I was only doing this periodically as an insurance. By Act 3 crashes got so frequent that it's no longer annoying but rage inducing. I feel this release got really rushed because they wanted to get it out before end of year and VGAs.