Well, it's possible that the producers helped them cover it up to the judges and what not somehow.
I mean when you think about it, not a single proper spinner won the championship before typhoon.
Yes, I know tornado technically was a spinner, but it's ramming and pushing power was the thing that made it competitive, plus it needed to use a stupid frame in order to beat a far superior bot.
Spinners seemed to be always the bridesmaid never the bride, hypno-disk,pussycat, disk-o-inferno and ofcourse my favourite spinner 13 black were all worthy bots that could have easily been champions but for whatever reason didn't get too.
I think it's possible that the producers desperately wanted a proper spinner champion, perhaps to encourage more spinner designs (especially shell or full body spinners, something that was a lot more popular in the u.s but, IIRC, not so common in the u.k RW)