Why do producers spoil perfectly good tracks?

I bought Modular 3000 - Mega Drive on kickin tunes recs the other day. The alternative mix is absolutly poundin, maybe the best bit of hardstyle ive heard, untill.. the third break comes in, and a crappy vocal goes on and on... then a cheesy happy hardcore beat comes in!!

Why ruin such a good choon?

Anyway, i suppose there are ways of mixing around it..