I will do! Still not entirely (entyrely? :p) clear what happened.
I think they used this tyre:
https://scontent-bru2-1.xx.fbcdn.net...6c&oe=595A82E4
Discussion I think is that the tyre is allowed in WRC (apparently it was developed for WRC Germany) but isn't on the FIA list of admitted tyres for Regional Rallies.