Matrix can’t be forced to put backdoors into their software because they are not s company. Signal can.

Of course, tons of tax dollars are spent hoarding vulns

https://en.wikipedia.org/wiki/Vault_7

The deals will allow the coders to serve these significantly lighter sentences than expected in New Zealand rather than being extradited to the United States

Honestly the location is probably more relevant than the time. Nobody wants to go to a US for-profit prison, where torture and rape are commonplace (both by inmates and guards)