(Caernarfon would require significant upgrade to support commercial air transport. It has no instrument approaches and RFF only Cat 1)
So, just as an example, Barra in Scotland has instrument approaches etc. etc. etc. to support commercial air transport?
The reason Valley has been designated as a, allbeit 'shack', commercial airport with millions being wasted supporting a joke of an air link is solely because a particular politician, who needs to attend office in Cardiff, resides in Holyhead.