EVERYONE had their "playable" solos moved down to the class 2 list. This isn't the committee picking on tubas, this was across the board.
UIL wanted fewer people at TSSEC. They wanted to hand out fewer Class 1 medals, so they took the five to six (or more) easiest solos off of every Class 1 list and moved them down - or worse, took them off completely.
The Class 1 list for nearly every instrument is now basically a college audition piece list. There's very little accessible to kids without private instruction now, unless that kid is extremely determined or a very talented player.