I think those incidents make the news as the media starts to look for them , and of course if you report them all in succession it makes catchy headlines. It would be interesting to compare the numbers of such inbcidents in previous years and see if the tendency is drastically up, but my gut feeling is that they are not.
The main issues in the US large numbers of runway incursions are well known, complex airports taxi ways set up , crossing runways in use simulteanously, unique procedures like LAHSO , and very lax use of non-standard phraseology to name only a few. Combine this with very high traffic levels at times, and understaffed towers and you have the picture. But since is not new, it's been like this for years.