I have followed the debate, but looking at the photos it seems to be more likely that the bridge holes were simply not drilled far enough apart.
This is a problem that I am currently also experiencing in a minor kind of way, on my EX1 build, however not to anything like the extent here - my situation is that I can't get the bridge on comfortably with the posts anything like fully down. Now it might be, when I come to set up the action this won't be much of an issue - also it would seem that one of the posts is perhaps slightly under machined as it is actually a very stiff fit when placed inside the bridge mounting hole. Perhaps a little judicious filing down of the post might solve the issue (and I am only talking fractions of a mm).
In my inexperience, I was guilty of not fitting the posts into the unpainted body to check this out at the beginning - was worried about being able to get them out again - but it's all a learning curve, which is one of my main reasons for having bought the kit in the first place. Any advice on my situation?