The problem goes well beyond eGun limitations, it is more in the nature of the sellers I think, - as it is clearly possible to take good pictures with what is given and several sellers upload their own and do an good job. (Some do a credible job within the limitations offered, often using some critical thinking in selection and quality of the rather small pictures)
Anyway, the few German forums I have seen also have this problem, as do some French, and obviously American and European collectors are equally versed in the technology and have similar cultures (at least for the immediate future, - this cult of heterogeneity and diversity will cause what has befallen every society that has experimented with it long enough...) , so I think it is more fear of their governments or laziness, or both (which in the latter case is also a common problem on Gun Broker and the dullards that often sell there... stupid people abound in the Occidental world, more than ever these days it seems)
It could also be related to the suspicion that "poachers" are pilfering data from their pictures, which seems to rankle many. Could also be related to the possibility that others may see a problem and generally a large percentage will let a problem, or two, or three, slide rather than go through the trouble of a return, which in Europe is probably a much larger problem/hassle than here.