I'm a big fan of Frost's ability to write in meter that is easy to read and scan, with rhyme that
works without being forced.
It would be amazing to make such a discovery, but you can be sure it will be scrutinized. At least, this discovery has a pedigree (in that the discovery was the result of a remark in a letter which was followed up on; it didn't come out of the blue).
This is unlike a supposed discovery of a Dickinson poen a while back that was produced by a notorious forgerer and murderer.
DICKINSON 'FIND' A FORGERY
BrianIs
AtYou