Additional Commentary on Mitzvat Aseh 8

Rambam's son, Avraham, asks:

The primary source which the Rambam uses to define this Mitzvah seems to be part of a condition: if you emulate me, such and such will happen, etc. and conditions are certainly not commandments. Furthermore, it seems as if the commandment to emulate Hashem may be a principal Miztvah (since it is repeated many times), one which would then not be included in the official count of Mitzvot.

Avraham answers his questions:

1. The fact that it is a condition doesn't matter because it is something we are also commanded to do outside of the condition statement.
2. In terms of the principal Mitzvah issue, we must take into consideration that we don't just look at the Torah alone when determining a Mitzvah, but also at the Mesorah, the orally-transmitted Torah. When doing so, we come across the Midrash that was quoted along with this Mitzvah and we see clearly that this is a Mitzvah unto itself.
3. The second answer to the second question is that if it were a principal Mitzvah, it would be worded differently.

I was unable to understand the remainder of the second answer.