I literally don't understand why its not being accepted, what are the technical issues

Along with what the others have pointed out, the there is some slight but noticeable lens distortion with the wide lens.

It's really not a bad photo, but it's just not technically sound and that's what Adobe is after.

In addition to what Marianne-Deiters said, you have some blown highlights in the sky.

Look at the picture in a magnification of 200% or more. The trees have no details, they are blurred and there are white edges and spaces between the branches.