CNM programs synchronous or asynchronous?

I can't answer your question about the hybrid model for your listed schools but I've talked to a few people about hybrid and syncronous vs asyncronous distance learning courses.  Most individuals say tht they like the asyncronous model better because it allows you to take the classes and listen to lectures at your own pace and according to your schedule.  This is especially helpful if you have a job and family/child obligations.  The downside of asyncronous is that you can't ask questions in real time to the professors and there is greater disconnect with your fellow students because you aren't attending lecture at the same time together and can't chat/instant message each other during the lecture itself to discuss what is being lectured on for that particular day.

Yeah, I agree with your pros and cons. I have been in programs as a student in both synchronous and asynchronous models and I have also taught in both models. 

I'm currently at Frontier. Typically zoom lectures are live but recorded so that you can watch them at any time. Sometimes you need to attend a live simulation but you can pick your date and time from  a list of options. 
I think it works really well. You get the sense of community when you attend live but don't miss out if you can't make it live. The instructors have all been very supportive and available for questions /help. I've been really happy with the classes and would definitely recommend Frontier.