It's perfectly reasonable if you want to be like "most teams," and not win a Cup.
Yeah, Blais is an average third liner (when he can stay healthy, which is not often, another strike against him).
But the role in which he gives us an edge would be as a fourth liner, same as Goodrow.
If Othmann could have earned a spot in the top 9, a Goodrow-Blais-Rydahl fourth line is quite an edge to have on other teams.
Lafreniere Zibanejad Kreider
Panarin Trocheck Kravtsov
Othmann Chytil Kakko
Goodrow Rydahl Blais
I would still try to role with something like that and just put Vesey on the third line.