Breath in Tyson breath in. This is for Feedback. Stealth and shrouding wasn't worst and wasn't the reason why 2+ reroll existed. It was a way to get them but it didn't happen offten. The usually way was enhance, start with a 2+ save or just cast shroud because you already had a character with stealth. Invisibility wasn't worst in the last edition because it only effected the number of the save on the back end of the formula. Current Invisibility changes front end (to hit) which by that very definition makes it a lot stronger.
Ignore cover is a consideration it doesn't eliminate the 2+ save if someone goes to ground but merely shifts the number.
Also this isn't for the local tournament scene but for GT's across the nation.