Accidental appeal and mechanics question.

[Illini_Ref]

OK, I know this has been discussed to exhaustion before, but here we go again. If I read correctly, the NFHS has re-implemented the accidental appeal. Case 8.2.3(?) has an * beside it denoting it is revised. It states that if a runner misses first but beats the play, and then the first-baseman "casually" drags his foot across the bag the runner is out. This is the accidental appeal. Am I correct?

Also, because of this is there a mechanics change? Say a BR beats the throw to first. The first baseman's foot is on the bag. The runner crosses the base but misses it, then the throw arrives. Before I called the runner safe if he was a step past the base and waited for an appeal. I assume I immediately call him out now. Correct?