Should I put these in the ground?

I thought I had my fabric pots dialed in, but hit a snag with a sativa leaning strain (2 on the left). I think poor drainage and overwatering has led to a nitrogen deficiency.

I've tried adding fish fertilizer but the yellowing seems to progress.

I have naturally sandy soil that drains well, do you think I should dig holes, cut the fabric and plant them?

If they're in flower, I'd just deal with it as is. If not, then you could put them in soil, but you'll definitely have some damage trying to transplant those plants.

I would just bury them in the pots.
Have done that with several of my autos after they came out of tent.
There are two Vietnam Black in fiber pots buried in a cement mixing tray they are going like gangbusters.