This seems to be the best forum to share experiences with CCP.
Are you guys familiar with this: Creative Cloud Help | Installing products in the Exceptions folder
The doc is not dated nor does it refer to any exact version number. The way I read it is that you are supposed to install Muse and Lightroom using MSIExec and not XDA (the Exceptions Deployer), see section "If you are installing Adobe Muse or Adobe Lightroom". However, in my experience MSIExec won't install those MSIs because they are in wrong format. The XDA will install them happily and they seem to work fine. Is it just me or how are you installing them? There is no reasoning for this instruction.
I am still working on updating my script to the new "enhancements" to the installation process... Don't hold your breaths!