Marvel isn't big on the reboot thing like DC, in that they've never done a hard reset from scratch, but they have retconned or changed things out over time (largely in relation to the sliding timeline). Well, that brings us to this issue:
Spider-Man vs. Wolverine was a graphic novel released in 1987... and oh boy, does this feel like a product of the time. Not specifically in the way of pop culture, but of politics. This was written in the context of the Cold War, and had Spider-Man and Wolverine fighting each other in Germany. Or rather, West and East Germany, because again, they factored Cold War politics heavily into this story, and thus the Berlin Wall features prominently throughout. Thus, you had the KGB, and the Soviet Union, and the whole situation in regards to global politics. All of this plays a part in the story.
Naturally, this doesn't just fit in awkwardly with today, it doesn't fit at all. There's no way you could pass this as a recent event like it would logically be in the sliding timeline, because the Berlin Wall broke 30 years ago, and East and West Germany were united as a single country once again, while the Cold War ended in 1991, as did the KGB, and the Soviet Union.
The Marvel wiki classifies references specific to the time the comic was in as being "topical", in that they aren't fully canon on the large scale, and thus when revisited years later, can be changed or modernized. This however, is a topical storyline where such era-specific elements are core to the plot itself.
So how does Marvel handle this today, if they do at all?