On the one hand, you're totally right, I always interpret such statements as "in average" (or some other statistical quantifier, but definitely not "all"), and I don't know how other people understand it. On the other hand, I have never seen (in online discussions/articles that I read) object to the idea that Asians are smarter than whites (in the US) (except you), or call the statement bigoted/racist; in contrary, I would consider it fact (again, with appropriate quantifiers), and the discussion seems to be focused on how to deal with this fact (e.g. negative racial discrimination for Asians in universities).

Well I have my own beliefs of course, and they might taint my rationality in accepting such statements. Still it's good to be vigilant, it might be true that Asians on average perform better at certain tests at a certain age, this might not at all mean they were born more intelligent and might only correlate with their upbringing and the expectancies of the world around them.

Also, I think universities have the job to yield brilliant researchers, inventors and engineers. I don't think any racial prejudice would be a very fundamental way of working towards that goal, so I'd rather they not do it, even if it means whites would rarely be accepted.

Of course, that whole problem might be caused by their entry exams not being a very good way of selecting for their goal, but that's me as a hopeful white person :p