It is not fair to sum up a route by looking at the first month's figures sorry TA.
You are talking to someone who has planned and launched routes for a low cost and watched them perform. It is PERFECTLY fair to take a view on a route after month one; it is simply not following the sort of profile that is expected.
Do you really believe that this route is going to get the 85%-95% loads - at proportionate yields - that it needs to succeed? I don't, and frankly, I've worked in this industry longer than you have drawn breath.
Vueling will be a success at CWL, or i will eat these words !
I'll save you a fork.
TA