I'd have interest. I don't think Lillard likes Boston iirc so it's pretty unlikely but it's worth at least asking the question.
From our perspective, you don't get very many chances to add an all-star or near-all-star contributor for a steeply-discounted salary. It's fair to wonder whether there's any high-level ball left in Lillard after his injury, but I think the potential upside would justify the risk and the cost.
From Lillard's perspective, he comes into a team with Simons, a former teammate who may ease the transition, and Tatum, a player going through the same thing right now. And from a basketball standpoint, White/Brown/Tatum would be a heck of a group to surround him with. Pritchard off the bench to back him up. There are few better fits for his skillset in the NBA.