something similar happened to me too last sage.

i'm of the idea that they should be strictier also with the time to be considered DCed. In SWB, imho, if you lag for more than 30 seconds you should be kicked out. SWB lasts 24-25 minutes. 5 minutes of waiting time out of 1 single person that lags a lot an have a potato connection isn't much nice.

Another option is that if you beat somebody that lags so much then you don't get 1 win only but a direct 5-6 wins, so your enemies don't abuse alts in that way anymore and if they help themselves then they are against the rules for sure.