Penalty for leaving a ranked game where I'm alone ?

Hello,

so there were some servers issue just now, and I end up being alone on my team, and they say I'm gotta get a penalty if I leave ?! Wtf ?

AND I get a penalty for every death since it's a team wipe...

https://preview.redd.it/go5crf2cqisg1.png?width=1721&format=png&auto=webp&s=692eafdcb62f93a8ff24f43e460744338de4dcd3

https://preview.redd.it/kpu0q6z8qisg1.png?width=1005&format=png&auto=webp&s=ac78b1c2779b8dcd63773cbfb7a0eac265b6c776