Yes, it is on ual.com, but only in standard mode. I hadn't noticed it before because I always had my display preferences set to expert in order to be able to see what fare classes are left on a particular flight rather than just an indication that at least one fare class is available. In expert mode you only get the two kinds of Coach fare - unrestricted (= Y or B) and lowest available (= V, W or Q).

This is strange. The non-experts get a better choice than the experts. But then, this is United.