MOTs, Servicing and Hab Checks

I picked up on a thread on Motorhome Fun forum about someone fined for taking his MH 75 miles for a service & hab check. They fined both him and his passenger £200.

MOTs have not had an extension period granted this time round. Servicing and Hab checks are a bit more of a grey area although it seems when enquiries are made, a definitive answer is not given. The distance does make this rather questionable although it may be that there was nowhere nearer able/willing to undertake the work. It does, IMHO, seem somewhat harsh, akin to the "coffee in the park" incident. Taking leisure vehicles for these purposes do make them a bit of a sitting duck whilst white van man/ private drivers seem to be traversing the country with impunity. Is this fair?