Dropped and Rejoined comp

Question. So my internet was lost in a comp game this season, but I was able to reconnect and rejoin the match. The problem is that even though we won I was still banned from comp temporarily and I lost 50 cp despite rejoining and winning. Is there a way to fix this? Have I lost 50 points for no reason? We literally won the match after I rejoined, what is the issue?

This indicates you were gone for too long from the match.

More info here: