DODAR is normally taught at the MCC stage, certainly not during PPL training.
Look at the PPL syllabus, out of 25 hours dual training, that barely leaves 1 hour to teach the PFL Exercise 16. Typically, it will need around 3 flights to ensure the candidate has the skill to glide the aircraft from around 2500 ft to a survivable landing in a field. The object is to walk away, not write a book about it in the 4 miinutes it takes to get there.
There is a huge difference between Professional flying where all these ideas come from and Recreational flying where most PPL holders are operating on the basis of just enough training to cover the basic skills and consolidation is based upon the size of their wallet.
For the PPL:
Diagnose - Engine is not as it should be
Options? - Land or Crash
Decide - Land
Act - Do your best to land in one piece
Review - Could have picked a better field (post landing!)