It should be a consideration though. 90% of the other Wings had never regressed like HTD during their prospect days (with the exception of maybe Howard, but goalies are up and down anyways). If I remember right, Helm, Flip, Huds, Franzen, etc. were said to be fairly consistent or getting better throughout their development.
At this point it looks like there's something fundamentally wrong in his character.
Helms second year in GR was a downer.
Ericsson had a downer year in GR.