We are of course all welcome to our opinions and on this subject I would need to disagree
I've operated on the Severn estuary and Bristol Channel mud from Longney Crib where it first appears to Stert Flats beyond Burnham on the English side and Newport on the Welsh side. All are different, and hazards vary, but there are none that exclude a SEV for any reason. I've operated all my craft from Weston, from an Osprey 1 through a Surveyor and the Otter , and there are no hazards that a decent pilot can't cope with.
Nor would I agree with the implications that the SEV skirt is more prone to damage than a segment skirt. Rather, lacking snagging points, it rides over potential snags, always provided its kept in good condition.
Even when damage is sustained, it can cope with remarkably large tears - up to 6ft of contact line can open up and it still flies - with a bit of a list, mind, but enough! In field repairs are easy too - just stitch it up with tie wraps, but its a very rare occurance.
The SEV structure is light of course, due to its advanced (relatively!) construction of foam core composite. However, this structure provides much better strength and stiffness for a given weight than does a traditional fiberglass structure. Of course, if you run it into an iron girder at 30mph it will likely cause damage - so best not to!
So there's a good deal of personal preference here in choice of craft, and that's all good, but theres no reason why a decent pilot cannot operate a SEV at Weston.
And that concludes the case for the defence your honor
