Re: Not Many Options
Good idea. However I'm sure that out-of-process will fight with the internal Office machinery because that assumes everything is running in-process. Which likely is a decision dating back to the 32-bit Office/COM days and that in turn requires porting of yet another piece of legacy Office code that has not been touched in decades, possibly breaking existing add-ons in the process.
Of course some add-ons won't we never ever ported and that will leave a trail of machines running old Office versions forever, much like there are still XP boxes around running old software.
History repeats itself.