Linux – Capturing output from a remotely executed command via SSH fails in CRON

This question is in a direct relation to this one: ssh fails to execute remote command when run from cron bash script – works from CLI

I'm not able to comment on the accepted answer as I don't have enough rep so please bear with me.

I'm running a script on a linux PC machine and the host i'm trying to get the output from is a router with its OS so it's nothing I can influence in terms of configuring the console.
Basically executing this under cron: OUT=$(ssh -tt -vv user@host.com "remote command") gets me an empty variable.

debug1: Sending command: remote command
debug2: channel 0: request exec confirm 1
debug2: callback done
debug2: channel 0: open confirm rwindow 2621440 rmax 262144
debug2: channel 0: read<=0 rfd 4 len 0
debug2: channel 0: read failed

If I'm executing this outside cron, i.e. in the CLI i'm getting output as expected.
As you can see the -tt option to force pseudo-tty allocation doesn't help.

Any solutions for this to help cron overcome the buggy remote console?