I think it's a good change, although for me, 30m would be the sweet spot.
But if you just don't like it because you don't like 6 again you're out of luck. They aint leaving.
6 agains, I think, are good in principle - issue is unclear applications (too often not even sure what it was for) and no clarity on either how often they are correct, or how consistent they are.
They counteract the overly pessimistic goal line play where teams would just endlessly give away penalties and slow the game down. They also are a bit more fair for some minor infractions that really don't deserve a penalty (especially mid field).
But application of them still needs work.
