Don't know about Amazon lawyers per se, but my understanding is that this is what almost always happens when some complementary third-party software uses in its name the name of the software it complements, in particular when it makes the third-party product seem to be developed or endorsed by the owners of the complemented product. May or may not be trademark related.

> The logo has a clear "unofficial" tag and the information is a stream of press releases. I don't see why anyone would care about it.

To see that you have to actually visit and pay attention. By name only, "AWS News" looks like an official Amazon/AWF too. The potential for confusion is real (any actual impact on the company, less so.)