I think the entire point of their endorsement is that they are not saying anything about parties at all, but rather that a singular candidate is dangerous for reasons relevant to their purpose and readership.
But what is the corollary to Trump "rejects evidence and science"? It's that anyone who votes for Trump does the same thing.
You're right that they did not spell this out. But many people who hear the endorsement will immediately jump to that conclusion.
Naturally. In what reality would voting for a candidate not indicate at least some level of support for their platform, values, etc., and wanting to see more of it in government? That's quite literally what voting is designed to do.