Since the EU is dependent on using "British overseas territories and crown dependencies" for Galileo, could the UK not hold those locations hostage as bargaining chips to get Brussels to "play nice" with Galileo?
The wording in the Times piece was “ It would use Britain’s overseas territories and crown dependencies to provide.. “ , not that these were the only plots of land on earth that were suitable or that the project falls apart without them .
I suspect If the U.K. drops out the EU will change plans (if they haven’t already) and use other territories (e.g.French ) as required, so no, the U.K. can’t use their own territories as sure fire bargaining chips.