They have the right to use whatever licensing they want, but it is strange that this one area - FUSE on Mac - consistently attracts developers using weird license restrictions.
This is because Google et. al. will take the code and use it unless you do this. (In which case they’ll reimplement it and not pay you, but at least you tried I guess…)
Because the Apple developer culture just like on the Windows side has always been welcoming to commercial software, that is how one keeps a paycheck doing desktop utilities.
