It will 'appear' to work [until the law of averages catches up] because it is psuedo D not E
that is of course until someone [either side of the ether] hesitates [in a pressure situation] as it is promulgated in all doc's and maps [and legally] as an E service, not D
A bit like '
Internationals' and SIMOPS. Despite the sage warnings from those that are licenced and operate the tower/s, after the inevitable, the bean counters and office types [who mostly could not find their own arses with two grabs] said it seemed like a good idea at the time