This may not be the source of the problem but:
The first time I changed the strings on my 'Bird I was all tuned up and ready to wail when I noticed the EXACT same saddle situation.
When I loosened the strings and looked I realized what happened...while I was changing the strings (and wiping it down thoroughly) the saddle had dropped out. I had stuck it back in and strung up. The piezo strip under the saddle had twisted a bit and shimmed the saddle up, the little amount of the saddle still in the slot caused it to go off kilter. My bad, with a Dumas award given!
Even if that weren't the case, it's a very small problem that Gibson would have no doubt remedied themselves if you had given them a chance. If your tech is Gibson certified he can get paid for the work by them. If he's NOT then it's your mistake there, should take it to the shop you got it at or contact Gibson. It would have been taken care of.
Gibsons of today are FAR from "shoddy workmanship" but, as was said above, mistakes DO happen. You should have given them the chance to take care of it before coming to public forums and making such statements. IMO anyway.