I hope I am wrong and that it is just me not looking at the right channels.

There's been a lot of bugfixing going on. We're now up to GA6, things are looking pretty stable, cluster support is back, ...

As far as why things have been quiet, well I think that is mostly because everyone is heads down on 7.1 CE. Before you ask, the only thing I know is that it is in the pipeline. I know there are cool features planned, but I don't know what will make it in. I don't even know timeline information.

Modularization does make for faster release cycles, but I think Liferay is still trying to figure out how to do modular releases instead of GA (monolithic) releases. I always find that in my own module development I'll feel like I need to extract an interface or modify an api or split a module... Until you get those details settled, each module change can be either a drop in the ocean or a tsunami that impacts other components.

Roadmap, etc. are covered at the various Liferay events such as the Symposiums or DevCon.

But yes, Liferay is absolutely alive and things are getting better every day!