I'm by no means against reduction or modification of service to match the reality of less mail being sent and delivered. Reduction of service and tax funding are not mutually exclusive.
But a legal mandate to serve all Canadians and a mandate for "solvency" based solely on postage are mutually exclusive in a country as geographically large as Canada with all our small, rural and remote (i.e. Unprofitable) communities.
I watched all of Discovery. It is, by far, the worst of all Star Treks. (Disclosure: I have not seen TAS.)
The reason is simple: Discovery is really the Michael Burnham show. She is the Mariest Sue who ever Mary Sued. Discovery could have been a really great show if it had been an ensemble show because it has a lot of very interesting characters whom we never explore.
Instead, everything centres around Burnham. She is the reason for the war at the start of the show. She is the magical, fated solution. She is Spock's (adopted) sister and had immeasurable impact on his life. Even through timey-wimey things, her (biological) mother comes to save her and the universe.
And on top of all that is the crying. Oh, gosh, everything is so emotional on this show. There is a time and place for emotions, but Discovery was too much of it, including inappropriate times. Burnham and her maybe-broken-up-boyfriend stop in the middle of an infiltration in a hostile station to talk about their relationship.
Even the really great characters, Saru and (Emperor Georgiou) centre around Burnham. She is like a sister to Saru, she saved his life, he gives up being a Captain to continue serving under her captaincy. Burnham is Georgiou's daughter (not actually), and Georgiou's love for her (as much as she can love) changes her.
No one has a story unless its actually about Burnham. Or they get a story and then get killed off.
The best thing about Discovery is it brought Trek back on TV and it gave us the rest of this era of shows.