Firstly,
monkeybumhead,
You have answered your own question:
'Seeing as the loadie will be flying with the aeroplane then where does overstretch come into this? It may effect crew duty time, but unless muppets render aeroplane u/s then I don't see a problem.'
The loading loadie will not, necessarily, operate on the flight given crew duty implications. Therefore, you need more loadies on the sqn or suffer overstretch - simple really.
Secondly,
Mr Hinecap has summed the issue up quite nicely. Banter is one thing, and is welcomed, but vitriolic outbursts with no factual foundation are pointless and, frankly, tell us more about the individual posting the comment rather than the subject.