Pretty much. Your idea in the issue is to not rank games ended by a draw, and I want to add on top of that the grace period condition.
As for the rating manipulation possibilities mentioned there:
- In 1v1, draw should never derank because connection issues aren't frequent enough.
- In team games, imo there are enough participants for someone to make a report against people who leave when they don't like their opponents/the map, and the unranked draw would be relieving for many players who get connection issues.