I think I have found an answer.
If install is done first time, that is, a clean SASHome, then retrieve hot fixes in the depot (this will be our case for the new enterprise push), ensure the target HF is available for SAS client and that will deploy during the SCCM push.
However, if SASHome pre-exists, then one has to follow the manual method (using HFDD tool, download, deploy, etc. etc.)
One monkey wrench is if retrieving the hot fix in the depot would include a specific HF (SAS may not download it). In that case, perhaps, if we manually download and place it in the depot and that would address the issue?
This calls for some testing. I invite your thoughts, insights, and comments.
TIA
Shoin