This must be your acorn for the day hahahaha. Yes, I agree with the Mike Evans comparison - for now. Going forward, I'd say that's about the low end for Watson - not a bad low end. I guess Moss may have been the fastest in the league. How many faster than Watson are there now? Not many I suspect, and probably none of them 6'5" or so.
As I said, with all those other really good receivers, Watson may not need to catch 90 or more.