OREGON (NFHS) experimental rule allows the defense to score during a try!

[Theisey]

I really think there may not be as many IWs as some who might be following this experiment envision.

My reasoning is this and while I can't be 100% sure we apply it unilaterally out my way at all levels, the only offical blowing his whistle on a kick try is the Referee.
I'll repeat that point, the Ref is the one killing a kick try whether is was good, no good or blocked.
Running plays, bad snap plays or passing plays on a try are a different animal. There's where an IW may bite you.