This feels like an op to me. The timing is uncanny. If this story develops, I predict some escalation of current conflicts with some advanced weaponry (chemical, biological, nuclear, energy, space-based, etc) and the alien story to be used as cover.
Alternatively, it’s a continuation of reactionary mobilization propaganda. Thought?
Yes of course aliens always go around littering their technology on planets of sentient life, it’s their most favorite activity to do.
As an alien myself from the planet zorbmorb, I have personally traveled a million light years to this planet just so that I can throw away my super advanced technology into the hands of the USA specifically then immediately leave without a word. It’s a pretty fun hobby for me and many others of zorbmorb