If you are suggesting that PDFSAM could be used to make separate PDFs and then they get pulled in as individual images, well, yes, but typing page=3 seems simpler to me.
If you are suggesting that PDFSAM could insert pages as a post-production step yes, I’m sure it could, but the crop-marks and acurate page numbering would be lost.
I’ll also add that there is at least one other way of inserting an entire PDF into the output, (while preserving page numbering and crop-marks), but it gets more TeX-nical.
Edit: The method is here: inserting an entire PDF