Is not a stand alone issue for me, but I did know that.

As for AS, its an improvement in the language, but not something that will force the marketing or network to change. DAL would not have given it to us if it effected the feed. Remember that as well. Its insurance, but we currently have a limit on total seats on a flight 50% and a total seat count. As noted:

With respect to flight segments of AS in a city pair, no more than:
22 a. 50% of the passenger seats may be occupied by passengers traveling under the DL
23 code in any month, or
24 b. a monthly average of 86 passenger seats may be occupied by passengers traveling
25 under the DL code per flight segment

Ref Live contract 1 O.5

That is enough protection for me right now to fix the rest of the TA.