Unfortunately have to agree that Co. Councillors are not the best people to be putting on TV or radio after any event, about anything, except business specifically related to the council, political parties or their work.
I wish I could say that they are useful commentators, but politicians who stand for election, a large proportion of whom are linked into the party system for a national political organisation, probably mean well, but such occasions are great advertising - perfect for putting the face out there to ensure the profile stays high.
I believe the vast majority of councillors are simply ordinary Joes who have expertise in their field of employment, what the council does, how to get elected and their political party (if any).
I have listened to radio talk programmes in particular, which choose to use councillors as panel members to talk on certain subjects. When I have knowledge about the subject, I have literally cringed as I listen to the hackeyed drivel that can be spoken, often with an air of authority. As Mpsox says, you could write it for them a lot of the time.
The media could work a bit harder and try to source interviewees which have a more secure viewpoint and ability to speak on certain subjects than county councillors.