I don't know, Alby community calls seem to do well. People are always excited to show off what they've been working on. Think of it like a podcast — it's possible for quality to degrade because you have to meet your content quota, but that only really happens if the participants aren't interested in the project any more. 

 This is true - Alby community calls are useful if you’d like to hear what other devs are up to.

Such a call does not necessarily contradict with focused dev calls (for instance gossip dev call).