There is simply not a large enough customer base for HTC to be splitting it into two arenas. If you want an HA, the best thing you can do is recruit new players to the game. When the community is large enough, Pyro would consider a HA concept I'm sure.
Also, preventing the CM's from setting the SEA as a HA is something HTC must do. It just doesn't make sense for them to allow the CM's to go creating alternate arenas. That's HTC's decision. The SEA is just for special events. If HTC allowed it to be set up as an alternate arena it would ruin it as a special events area... that's not the point.
Now if you want more historical matchups, you can just get busy and come up with some special events to run in the SEA. I'm sure HTC would be more than happy to accomodate you in this regard. If you really want a HA, show HTC you are serious by running HA type special events as frequently as possible. That way everybody wins.
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Lephturn - Chief Trainer
A member of The Flying Pigs
http://www.flyingpigs.com "A pig is a jolly companion, Boar, sow, barrow, or gilt --
A pig is a pal, who'll boost your morale, Though mountains may topple and tilt.
When they've blackballed, bamboozled, and burned you, When they've turned on you, Tory and Whig,
Though you may be thrown over by Tabby and Rover, You'll never go wrong with a pig, a pig,
You'll never go wrong with a pig!" -- Thomas Pynchon, "Gravity's Rainbow"