I don’t see why or how a .yft file could be over 16mb, but I do agree that the limitations on file size can be very annoying sometimes. I’ll look at the file and see if I can do anything for you.
Yeah unfortunately it looks like the creator, POLICESCO, made a mistake when making the YFT or put too many objects in it. What doesn’t make sense to me is that the other YTD and YFT are both under 10mb (The YTD’s are usually the perpetrators, but in this case, the YTD is 3 times smaller that the YFT). Like @UltraSwift said, since the model in unlocked, we can’t really do anything to edit it. Sorry. Good luck in the future!