I received one, though it was for adding a footer honoring MLK. I kinda thought it was odd, but did't think much of it, since I'm apparently not in the group that would be offended in any way. I wonder if the variation they use is random, or in any way location-based to maximize response (I'm in Texas).
I've also received a bunch of API failure phishing emails, as well as some implying we needed to change our auth to Sinch.
I think the main motivator is that most people/businesses would not want their transactional emails to include political at all.