I thought of this too. For one, you'll have teams declining a five-yard false start penalty because it would create a 61-yard attempt versus a 56-yard attempt.
For another, in the NFL the seven-yard buffer between snapper and holder is universal, because that's tried and tested to be optimal in time and distance. But with this incentive, if a team is at the opponent's 40-yard line, does anything stop them from having the holder set up at midfield, taking a ten-yard snap, and attempting a 60-yard field goal? Or will they just define the length of the field goal attempt as the yard line plus 17 (10-yard end zone and 7-yard snap)?
Otherwise, to take it to the extreme, if a team has 4th and Goal from the 15, down 3 late in the game, and a really good kicker, couldn't they theoretically have a punter/holder take the long snap in punt coverage at the 25, run back 15 yards, set the ball down, and have the kicker attempt a 60-yard game winner? (Obviously coverage would be tricky, you'd have 9 lineman blocking 11 defenders at the line)