There is no such thing as 'inadvertent IMC' it is & always will be a choice the Pilot makes, albeit a criminal choice if He isn't IFR rated & current, machine IFR, a plan to enter IMC & go to LSA & a clear procedure (legal) to return to VMC
After 3 decades of Rotory flying, mostly stooging around ****e weather in eXtreme mountains I've never been IMC. (& never will, not in a VFR machine)
Yep push it pretty hard for a Rescue, but always have an exit plan B & never loose visual......it's that simple