I agree that they are banking on getting healthy. I also agree that it would have been great to get another lefty reliever.
But I do like the Vogelbach/Ruf/Naquin moves. A lot of versatility and power off the bench and, as much as I love him, I think JD Davis is just not that good. He has had a LOT of chances to prove himself and he did not do it.
I think Diaz is the most dominant closer in the league right now. Back to his form from his last season with Seattle. I don't see that changing.
If Max and Jake are both healthy, I think the Mets are the best team in baseball. As long as Cookie, Walker and Bassitt continue to pitch well, the Mets will be a tough out.
All in all, I'm happy with the moves the Mets made. They didn't overspend and they addressed areas of need.