Ouch, but good foresight on booking it as two separate segments for the upgrades. (I need to learn how to do this.) I was about to say something to the effect that you chose a tight "connection," but I see that you didn't if the departure was about 90 minutes late and you nevertheless almost made it.

While it's bad luck about the missed flight, you've had a taste of the privileges that status brings. A night in the Embassy Suites with meals is about the best that can be expected in such a situation. Overall, not a bad recovery by Delta in an unfortunate situation.