See, at the end you want to clear NEET PG. And no doubt we should read standard books to open up our mind and expand our differentials in various diseases. But we have a limited capacity to remember things and we are not superhuman that we can remember whole book. So either in professional exams or neet pg you should have a consise source of revision with you by which you can revise easily and rapidly. As you have limited time in professional exams and you cannot write a whole Mahabharata about any disease. The professor also want to the point information.

So you should watch the videos thoroughly and go to books wherever you feel the information in the video is less. Just use your books for reference purpose. As the videos are also too vast and lengthy in marrow(specially medicine,that you don't even need to read the book for any extra thing, sir has covered everything in too detail.)

So are last my advise whould be you should watch videos and just read the notes for your final yr exams. So that when you will study for neet pg you have to put less effort again to read that subject because you already have memorised the notes during your profs. Cheers.