I've compensated for this problem a couple different ways... As you suggest, starting the timer after the film is in the fix... or sometimes setting the fix timer to 20 minutes before starting and making sure the safelight isn't switched on. (I also have to ask myself why I plug the safelight into the "enlarger" socket - another mistake with potentially devastating consequences)...
I think I will dedicate a wall socket for the safelight. (I don't "need" the light table plugged in all the time).
My enlarge came with a timer that I plug the safelight into. I can turn the safelight off. My wet darkroom is in another room and I can use the Gra-Lab there if needed. I use the Gra-Lab for timing film processing with the Jobo.
Warning!! Handling a Hasselblad can be harmful to your financial well being!
Nothing beats a great piece of glass!
I leave the digital work for the urologists and proctologists.