If black plays it wrong, it will work. But if after KxH7...kng5+...Kg6...black is uncomfortable with the naked king but it is not that easy for white to close the deal. If instead of Kg6 black goes KG8 or H8 then it is mate in 2 with the traditional greek gift.
If greek gifted, Kg6 is almost always the best move...though typically still losing
can someone explain to me why it doesnt work here?