most people in this country will assume, pretend, live in a denial that you are straight until you SAY THE WORDS.
so even though snickering queens everywhere knew nph or lance bass or rj helton or whoever was gay before they came out--flaming, gossip, or 'out in nyc' or otherwise, it's still a huge deal to be famous and put it on the record. it's a big deal for non-famous people to come out. to negate that bravery is childish and bitchy.
furthermore, rj is a Christian artist and thus his coming out is at a much greater risk, given that most Christians are not of the religious left viewpoint that you can be gay and Christian.