Indeed Rahkamo & Kokko were often controversial.
Their 1991 Skate America drunken sailor polka was controversial because the judges decided their music was a hoedown, not a polka.
It only survives in a summary report of the CDs and OD of the event:
https://m.youtube.com/watch?v=dEbgbwhoO0Y
They changed to a Lapland polka that was controversial because it was another drunken polka story, and some people thought it was disrespectful to Laplanders.
https://m.youtube.com/watch?v=n2ebPwftemw
and of course, controversial Petri was even in 2014 when he tweeted that V/M should have placed first in the finn step