Can somebody please genuinely just try to explain this to me

I was running (Unranked) DP, and i decided it would be fun to play full turtle hermit, so i ran krillin, chiatzou, tien, yamcha, and young gohan. I found a match against an individual who ran Caulifla (spammed explosive wave), Kale (spammed grab) and Cabba (spammed ki blasts) This isn't a rage post i'm genuinely just curious why somebody would play like that in unranked of all places, especially as a B2, which they were. Edit: When i said Kale spammed grab i meant rush