Mugsie thank you. It's reassuring to know that it like it damp. I suspect it just got way to hot and dry on its journey from CA to NY. It was quite wilted and dry when it arrived, and the yellowing/dropping leaves thing. It's def stabilizing now.
It makes sense that a hoya with very thin leaves like this one would not be able to hold without water as well as thick succulent type leaved hoyas.
When I put this one into it's longterm pot soon, I'll be sure to add a little extra potting soil to my hoya mix proportions.