Interesting. You agree with my points and then don't.
The length of the runway, the access to the airport, the shininess of the taps in the gents loo and the weather record all add up to a bucket of spit if the market isn't proven. Forget them, focus on the market!
What goes for Cardiff goes ten fold for Pembrey. If the market for the former is suspect, the market for the latter REALLY is.
TA