I agree with you completely.  Also, note that And the Band Played On was written by a gay man from within the gay community.  It's obvious from how this article uses "homosexual" so frequently as a noun, that it hasn't had enough previous influence from the gay community.  Hopefully, that will now change.  Let's see this article become even better still by the correct use of "homosexual" and the incorrect use changed appropriately.  Political correctness has nothing to do with it.