Quite obvious that was intended. And it sounds like a viable tactic for jerks.
And sadly the internet and especially anything related to dota is full of them! So this could't get more common in the future.
I faced a similar situation:
Game started - everything allright.
After a while we were leading in kills and suddenly it started to lag as hell. After 3 horrible minutes I left.
I think an autokick against extreme lagger or extreme low sim speed is necessary to avoid this.
Btw is "opening torrents" the new expression for "downloading"? If I would do such shit I would just throw on the next best ftp download which comes to my mind. Just curios because that expression seemed so native to many people in this thread