Motte is great but how high can you go for a 4th line winger who already is making more than most when you're trying to lower your salary cap?
Moving on from him is just the business of hockey. It's not going to make much of a difference if any on team performance.
If he wanted too much they had to get an asset back before trading closed. And the return isn't low, it's market value. Here are some other players who went for 4th rounders recently:
Brassard (Edm), Appleton (Jets), Wedgewood (Stars), Vatrano (NYR)
Good move by Allvin