Of course, given Donald Trump's so-called #muslimban just a few days old, the internet has welcomed the Budweiser commercial as a political statement against closed borders and in favor of the true industrious potential of immigrants that made America great (pun intended).
Now, the truth probably is just opposite to that. Most likely, it is Donald Trump's Executive Order that turned this ad into a political statement. See also the comment in this AdAge article.
What's more, there seems to be a trend in recent ads from the Anheuser-Busch Inbev family to focus on these historic roots, with a striking similarity between ads to touch upon nostalgia, authenticity, and a claim for decades of expertise.
See for instance these examples: