i found a few bugs with the carper item
1st if you use a piston to push it form the side or pull it from the side it acts like a regular block and pushed everything out of the way, but when pulled from the top it breaks and turns into an item

2nd if you put a block in a sticky piston facing upward and put a carpet on that block then give the piston a 1 tick pulse, forcing the sticky piston to extend and retract without retracting the block attached to the sticky piston the carpet on the block does not break, however if you just push the block without retracting the carpet immediately breaks.