tps were not provided for free. tps log their working hours for each and every project they assist on, even for a 15 minute conversation with a project they may never fly. At the end of such discussions the project code is usually asked for. Before the partnership with QQ came along tps were being billed for at astronomical rates such that some projects would avoid using them. However, since the partnership, the billing rate is now a nominal fee which is less than for the QQ trials officers themselves.
As for the quick exit option, regretfully that has been taken away after one tp exercised his right a few years ago.