Possibly, but look at what might happen in the music caption. An Indiana band that might place 3-5 in music at GN in Indy could suddenly be looking at 6-9. BOA scores can change based upon the ability of the competitors. You have to have room to slot everyone. Put Avon in 5A state finals and they'd easily place in the bottom half musically.* Not to mention that of the Texas schools in GN finals, 2/3 were not in 5A SMC.
Quite frankly, the Texas kids play their horns much, much better. (A lot of this is down to valuing different things among the two states' music educators.)
*I've only seen the Avon Semi-Finals show on The Fan Network. Perhaps finals was much better and I just missed it.