Yes, and I still listen to the 2008 “A More Perfect Union” speech. Anyone who thought Obama was a lightweight after that speech is delusional.
Also, his memorial speech in Arizona after the Gabby Gifford shooting was inspired, as were his acceptance speeches in 2008 and 2012.
Yes, the rhythm and cadence reminds of a black church, with the call-and-response and the building up of tensions and the release by a call to action or a biblical scripture. It’s a great tradition, and Obama seems to have mastered its ability to summon moral authority and righteousness.