But people are gonna keep trying to work out the exact values for every single item. You said that the data worked out so far is misleading. There isn't a world in which people don't try to work out these values, as the game grows, the more this type of thing will happen.
So either you're fine with people being misled when some items get mistakes on them, as thats a natural part of a community for a game developing; some stuff that's worked out will just be wrong. Or you're not fine with that, and give some amount of information for these drop rates.
Now sure, it could just be your personal opinion on this, but you sticked an official response to this saying it's not technically correct, without any other information (what in the spreadsheet isn't correct, how far out it is, if its too high or too low etc...), which doesn't really help anything, it just means people have a set of data that is close, but not perfect, so the only real way to deal with it is accept...