Aggressive matchmaking bans?

I was playing a game of matchmaking today in MCC. It was a CTF match on Hang Em High (Halo: CE). I was just testing to see if HCE online was any good and after I got fed up with the match I left. Immediately afterwards I got banned from matchmaking. For leaving JUST this one time. Granted the ban time was very short, but I am gravely concerned about the autoban system implemented here. I took a picture as proof.

If someone at 343i sees this, please fix this. Not everyone quitting a game is doing it just to be a scumbag.

https://drive.google.com/open?id=1cyTk5gJq_u2fHI0xPm63vBDLQFQSRYLJ

Relevant thread:

https://www.halowaypoint.com/en-us/forums/84ad72a8b51847978545f685f651fc15/topics/the-official-halo-mcc-why-was-i-banned-thread/95de2d50-5e10-42db-9490-c24efbd2dc74/posts