This poll is unerringly reminiscent of one that I remember seeing on here a few months or so before the elections last year, showing Joe Manchin leading Patrick Morrisey by something like 51-38%. And we saw how that turned out. I wouldn't be surprised if Collins ends up winning by a narrow 52-48 or 51-49 margin when all is said and done. Even though it's a year out, I think this poll might be a foreshadow of what is to come.
The difference is that Maine is far more R friendly than WV is D friendly.