Yes the boat making and sailing was good but hardly suitable for transporting cattle and goods as was suggested. You would surely require a much more substantial and larger craft for that and more manpower!
Another claim I thought seriously open to question was the large animal bones directly under the floor paving which was possibly for 'ritual offerings' (the good old standby). I think there is a good possibility that those large bones were used to stabilise those paving slabs as the slabs rested on them and not buried in any way under the soil itself. Makes sense to me and a really practical way of disposing of them rather than seeing them as ritual objects.

Just saying...