This is categotrically untrue.
It is even categorically untrue of the pali canon, let alone my imaginary “ideal” canon of overlapping pali and chinese.
For a mostly Pali centric analysis of exactly how often and in which books aggregates material actually occurs, see:
This is not the whole story of course, for that a genuine and robust analysis of jhana/sekkha and anatta/aggregates would need to be placed side by side, which is what I intend to do in the OP
This is true of the Pali, and the evidence from the Chinese is yet another example of why its probable that the original M lacked many of the S style discourses originally.