A lot of words to not say much of anything in that article... somebody in DL marketing was busy writing that much nothing. Funny they mentioned "dual-network connectivity" without any info about who is the provider partner... and no timeline for the connection carrier completion. 717 updates to "dual-network connectivity" aren't starting until Q4 and won't be done until some time earlier 2026... so basically another year without 717s having reliable wifi, and an unknown time frame for the regional connection carrier jets.

Only thing of any real interest is "As of early April, all customers flying across Delta’s transatlantic network to Europe, Israel and West Africa will have access to fast, free Delta Sync Wi-Fi presented by T-Mobile."
And they avoided the elephant in the room entirely... TPAC connectivity.