Cause its slow?
Discussion
That's very high time preference
You should try using Tor for SSH. It's simply not designed for long living connections.
The lack of performance, that's because it has no incentives for node operators, and that also means that probably most of them are owned by the NSA anyway.
You're right that it's not suited for time sensitive stuff. But for messaging, light browsing, email, podcasts and light social media, it's more than enough.
Yes Tor is not perfect, but it's definitely better than anything else considering the anon set.
If most nodes were operated by the NSA, most businesses on the darkweb would not exist.
NSA needs tor to actually work for their own operstional motives.
NSA uses tor, of course, and it's no threat to them that they run a lot of the nodes behind fronts.
NSA would use darkweb businesses as cover, and probably some of them are heavily infiltrated, you surely know the story of SR.
Time sensitive is not so much the big deal, low latency is not that bad really, what sucks about Tor is the time one can be waiting for a ping before it and the app protocol time out. On SSH it's extremely difficult to work with it, even using MOSH.
Other than that, I illustrate it in the Indranet whitepaper here:
It's not scaling. Per node bandwidth is moving up but number of nodes is not. It's been static for over a decade. The security and stability of the system cannot be in a positive trajectory in these conditions.