Sort of. No state in this union should be ignoring projections and just giving things away. It's a little surprising that Oregon (with the lowest number of hospital beds per capita in the lower 48 - or at least close to it) would be optimistic about its own state of supply. It's going to be a long time before New York can give back, so hopefully other states will help Oregon if need be.
Many states are acquiring supplies such that they are approaching the ability to deal with the peak demand, at which point, yes, they should share. Sending things by plane or train or truck across the country is not a completely risk-free, certain thing - so if a particular place is going to have 60 deaths per day in two weeks and only has supplies for 30 patients per day, it needs to slow its roll and make sure everything is in place...at home.
By early May, New York's terrible crisis will have died down to almost no corona virus (while some states are still ramping up). I hope the ventilators they have are sterilized properly and sent back out to the other 49 and I hope Cuomo continues to do daily press conferences about these issues once NY ijs down to almost no CV per day.