Multiple moves winning, but only one move considered to be correct

Hello,
I was just going through & solving puzzles when I came across a puzzle which has 2 winning moves but only 1 considered to be correct. Which should be ok as the puzzles ask us to find the BEST move in any position.
But, is it really right to say that the 2nd best move, which is also winning, is wrong? Why not make both the moves considered to be correct? Since both the moves are winning!

In the puzzle: lichess.org/training/8Tq2y
On the second move of the puzzle, exf6 is considered wrong and Kh5 considered right even tho they both are winning, giving us an advantage of +2.5 & +4.5 respectively...
While solving the puzzle, I had considered exf6 first and realized that it is winning and I made that move, which is not the best but also isnt wrong.

Thus again, is it really right to say that the 2nd best move, which is also winning, is wrong? And why not consider them both correct?

exf6 is not winning. As simple as that. :-) Feel free to propose a variation.

@nadjarostowa said in #2:
> exf6 is not winning. As simple as that. :-) Feel free to propose a variation.
hey there, if you know thats not winning and is a draw, can you please share the variation consisting of the best moves? I dont need to propose a variation...

I'm running SF with tablebases, and the problem with draw variations is that they are not forced... so one move is as good as another - so you may think that another variation would win.

One line goes 55.e5 Ke7 56.exf6+ Qxf6 57.Kh5 Qf2 58.Qe4+

Not easy for the brower engine without tablebases from the start, but if you follow its mainline, after 57... Qf2 it is already down to +0.8 or so.

Just TDed it (it does indeed seem rather goofy).