They awarded E-170, that's a different seat range in the SCOPE section.

51-70 seat max of 102

71-76 sea max of 223, once Endeavor takes delivery of their last CR9 DAL will have 193 76 seaters in service. DAL will have to park 50 seaters due to the addition of the last 30 76 seaters above 193 and the ratio is very steep, i believe it's close to 1 to 4 ratio. I am not in the DCI system so I don't keep as much track, but the E170 awarded to RAH are likely to be capacity being moved around the system and not additional lift. The flying will come at the expense of someone else as I believe Delta is maxed out on the 51-70 seat range with 102 airframes.