And that's Orlando and still used?
I quite honestly don't recall that being there in my 50+ rides. If your kid is of questionable height, you go off on the left side bypassing that small line and measure at ride entrance.
It is very dark in that room, so maybe that's why I've never noticed. Whereas in Hagrid's, it is bright and I noticed it immediately. I will almost assuredly never have an issue with weight baring something tragic, so the embarrassing check doesn't affect me personally. But it was incredibly noticeable and stood out at Hagrid's, IMO.