Futile effort or worth a round 2

When I flew back home this easter, I brought some materials with me and relaid KBG sod on the family plot@the cemetery. Incorporated water crystals in the dirt, overseeded with TTF , laid down tenacity and prayed for a hail mary.

I've asked for some pics of the progression and well, some sod made it, some is either dormant or probably dead and the remaining 95% beyond the perimeter of where I laid down Pre-M is pure crabgrass cut nice and short...I suspect most of the KBG is done and the greenup is just the TTF. Tenacity seems to have worked it's magic as its either pure grass or dead grass on the plot and the cutoff of the perimeter is just scalped crabgrass galore. I knew the turf was bad@ the cemetary but not having really seen it in the summer, I did not realize how ~bad~ it was.

I know this is a losing battle and at least we tried with effort. It's just too much weed pressure...

Whaddya say . Is it worth a round 2 attempt on this. A full on TTF renov with a splash of KBG.

Or without zero feeding, some years with Pre-M , others without, it's fruitless to attempt such a renovation ?