FlyboyUK
Yes, I can see where you are coming from.
There was a big bubble over the controller's head and everybody else listening.
If there was a commercial need for the a/c to go to ALC, why not tell the controller that they require a change of destination for commercial reasons rather that require diverting?
Subsequently when questioned again by ATC they said technical problems and obviously the controller asked what kind of problems (ATC would have to plan accordingly) and then as I said before it was changed to commercial reasons.
A few things went through my mind as it did to my colleague in the flight deck as to what was actually happening to the a/c.