But you know how loyal Dubas is to his players. I don't see any scenario Kyle even approaches Tavares with that question. Especially the part about being booed out of town. That would be completely classless for any GM.
And if somehow that conversation came up, say Tavares wants out or simply agrees, good luck moving that contract. I'm sure there are a (very) few teams out there that wouldn't mind an $11M/PPG player for three years, and can take that AAV even with retention, but they'd have all the leverage in any deal.