There is/was a seg run going on someday. Since least portals are really really hard, we would have only "barely least portals" category. I mean the strats would be very hard for not much fun. However if you do a run, dear Racingmonster and the community likes it, then yeah, I guess that could become popular.

You could just make it a challenge run instead of a speedrun. The person who is able to beat the game using the least portals has WR. If two people tie, the person who has the lowest time wins.

Speed still matters if multiple people get the same amount of portals.