/jp/ - Otaku Culture

I know its lame to talk about the things we don't like but it has always perplexed me.
polyrhythm is the song that saved them when they where on the verge of breaking up. yet to me it has always been one of the very few songs of theirs I can't stand. while I understand that technically it was chocolate disco that saved them I still wonder why it was polyrhythm that rocketed them and not chocolate disco. its an infinitely better song and caught enough peoples attention for it to boost their fame. why didn't people buy the single as much as polyrhythm.
any people got any incite on to how polyrhythm and chocolate disco are viewed by Japanese people?