For most men having sex with men, using a condom for oral sex is very rare. Almost one for those with rubber fetishes, in fact. Remember there's more oral sex between men than fucking.
I like doing it, a lot. It's my favourite thing to do with men. I do like the taste, and I don't like the taste of rubber, so I won't do covered.
I acknowledge that it's a risk for some things, obviously won't do it if there's any sores / pus / extra sensitivity, and make sure the clinic knows to check my throat (even though I hate that!) No problems so far.
If other people make different choices, yippee. It's what free will is for.