This sounds like a negotiating tactic. Terminate all the perks in the current basing agreement so we have to fight for stuff we already had, never mind improving the document.
"Ohh you'de like to negotiate for Temp Bases, sign off on the new FTLs and its yours."
"Ohh you want mutual base exchanges, well we need this in return"
"Ohh those preferred ports which make both our lives easier, sorry they're gone, but if you work with us on the HK Housing problem, we might find a solution."
"Ohh you want us to clear up the onshore double taxation with HKIRD, well we need some leeway with International Cadets"
What better way to negotiate than remove all perks before coming to the table?