From what I understood Intamin promised a much longer durability, but the wood didn't keep up to that. Maybe Heide Park could have contolled it better, but if what I heard is correct, it's also partly Intamins fault.Please let us not forget they're only having to do this because they didn't take care of their coaster properly.
Also, I think that guy just said "it's the first time we do this" to stress that it is a challenge. It's not like they're putting it on large posters and making doing with that. At least not yet.