So does ssh now.

So much smoke & obfuscation. Autossh itself mentions ServerAliveInterval. It's worked flawlessly on all kinds of dodgy connections for me.

If anyone has any damned bug reports, link them.

I don't know if I would call it smoke and obfuscation, at the time systemd was not widely deployed and the ssh functionality was not as developed, so it made sense to use autossh. Now it sounds like it doesn't make sense anymore. It happens.