I totally understand what Eloxy is saying. But when it comes to Arena,

There was a statement that the current system in live wow was not working for a lot of people. Having rated requirements tended to let the highly skilled people get gear quickly and then keep others from getting it. You end up with a large group of people that can never get a pvp weapon (1800 isn't exactly easy, maybe 20% get there?) and anything but those terrible wintergrasp shoulders.
This is the exact case. I've been playing serious arena for about 2 months now. I came in VERY late in the season and I'm probably not the greatest arena player, but when my 5s team isn't getting 1300 rated teams, we get 2k+ rated teams and we get destroyed. The teams that are our MMR (1750-1850) are either Full wrathful T2 wep teams that are just carrying someone, or trying a different comp. It's the people who have the gear that are pushing my team, who is mostly full relent + 232/PvE weps down and keeping us away from our 1800 weps. It's not skill when a 4 DPS team can global one of my teammates.