It could be mandated that all facility pressures be below atmospheric pressure. Then all leaks would lead to air getting into the pipes rather than gas getting out.
Clearly with that being the case, one needs much bigger more expensive pipes.
That would easily solve the problem, by making any gas processing facilities completely uneconomic to operate ;)
I am quite interested in the idea of methane leakage though. There seems to be a growing consensus online that it exists and is significant, but within industry it is really not recognised.
Clearly with that being the case, one needs much bigger more expensive pipes.