So having a 3rd party scout and steal all your signs, is totally legal then?
And just so you're clear, you don't think home teams (once they play someone) don't have all the signs of the opposition recorded? home teams even get to modify and send out the All22 film other teams get to scout with.
You're arguing 3rd parties scouting is legal, and illegal, under the same rule. In fact, both are either illegal or legal. There is no inbetween. You've just made an argument that exonerates Michigan, congrats.