this is fantastic to hear, sounds like things are going really well!
Yeah beware silent instructors, they are invariably plotting something evil!
Seriously the best learning experiences I got from my flight training where when I was either solo and effed up or when my instructor stayed quiet and let me take a mistake right up to the edge.
The feeling of "EEEEK, I'm never, ever going to do that again!" is very strong
I wouldn't stress too much over pristine accuracy for your forced approach, I'm not sure what your test standards are but usually as long as you would have made the filed you designate, you'll pass the manouevre.
Safe landings