I have no idea what Marinelli/Richard were thinking. That first play in the video was a disaster from the get-go. I didn't see the second play.
LBs are 5 yards off the LOS.
3 of the 4 DL (Jackson, Hill, and Woods) are looking at double teams.
DE Joe Jackson gets ridiculously blown back 5 yards by the TE. Hill gets blown back, not as much as Jackson though. Woods gets blown back.
Hyder isn't even in the picture since he is so wide.
Jaylon Smith hits the gap late and weakly. Lee looks like he has backside responsibility but is in no-mans land.
Luckily, Wentz doesn't keep it and go around the edge because no one was there to stop him.
Key takeaway I saw: not one of the 4 DL or 3 LBs were in a position to succeed against the run. As a QB, the play screams run. The Eagles have 7 blockers on 4 DLs with 3 LBs 5 yards off the LOS. On that play you could swap out Hill with Aaron Donald and likely get a similar result.
I don't know what the down and distance was on that first play in the video. But there was no way the Cowboys were stopping a run with that defense.