Yup, saw them, they had even looked at using my Tor Go controller lib. I look forward to watching it develop towards end user friendliness. I am a fan of the project.

So my security knowledge is a bit lacking. Is there anything that would make using cwtch less secure than using Riochet by itself?

Just potential vulnerabilities in the implementation AFAIK.

Cwtch hasn't been audited whereas Ricochet has.