IFT job told me I did too many assessment questions as an EMT??

For context, I'm an EMT-B currently in the training phase for a private IFT service (I've been training for 2 days so far since I'm working part-time) and I was with two supervisors for my training days. Yesterday we had 3 calls, and I was assigned to the leader role for those 3 calls. One supervisor would be driving the truck, while the other one would stay in the back of the truck observing me talking to the pt and whatnot.

I learned that our first pt was admitted to the hospital with a c/c of CVA-like symptoms, and we were transporting them to their house after being discharged. I decided to do a full assessment by asking simple OPQRST & SAMPLE questions (although some of the SAMPLE questions were already answered in the pt's discharge papers which I was told we could pull info out of and log that into our charts, but I ask the pt directly too just in case). I then did the full, complete detailed assessment.

After we got done transporting pt and I was done doing my narrative, my supervisor who was w me in the back ended up telling me, "You didn't need to do all that," "That was unnecessary, but good for you," and he later asked me if I was doing anything else while working. Told him I was also in medic school full time and then he said, "Oh, makes sense why you were doing all those assessment questions then." I asked him about his plans and he said he's in school to be a PA.

Is this like, a normal thing? Or am I just tripping balls? Trying to get a scope of a lot of people's answers.

Update: Thank you to everyone for your honest replies. I got a good sense as to why IFT's may advise me to not do a full detailed assessment as I was taught in EMT school (since EMT school mainly prepares you for 911 service and not IFT's). While a detailed assessment may not be necessary, it is still advisable to perform it depending on the pt's presentation, along with knowing their past medical hx and such. I guess now it's just a matter of learning how to separate performing pt assessments between my IFT part-time job and the ones in medic school. Again, thank you to everyone for contributing your thoughts and opinions from personal experience(s).