This is not the only attempt to say that NASA can't afford to continue to use resources they've already developed and launched.
If you look at the SOFIA Project, you will find that the aircraft recently reached a fully operational status. This is a platform that should run for about 20 years collecting data and expanding our scientific understanding. They were scheduling and assigning people time slots for years on out before this budget release.
The budget proposal shows other priorities. NASA has been asked to mothball this platform to save the money that would be required to operate the airplane.
In the spirit of full disclosure, I am not an uninterested party. My spouse is a civil servant working on that program. We are close enough to retirement to handle these types of priority changes. But I do feel sorry for the younger people who moved from AMES and bought a house here expecting to collect scientific data for years to come.