144 segments last year with under 10k in spend. Needless to say, I would not bother to spend a penny on the card if this was removed. (Much better currencies out there, obviously). I would also have to seriously consider just giving up on DL, period. My primary reason for flying them was that I could get to DM as apposed to AA Platinum or Plat Pro.
Agree this is a benefit to those that actually meet the spend--but there are a few of us out there that Delta and AMEX would miss out from, I imagine.