At risk of upsetting some of the previous posters, I agree with UG. Let the route be what it is - I don't think Wootton Bassett ever chose to be on the previous repatriation route, but the residents paid the utmost respect to all corteges which passed through. Those who wish to pay their respects will still come, those who would pay their respects because it would be convenient may not make the effort. The dignity of the repatriation will still be preserved, maybe more so, if the route is not forced through a town (and thus forced to become a spectacle) unnecessarily.
It is misplaced outrage if the only motive is to become 'Royal' Carterton (with no disrespect meant towards Royal Wootton Bassett).