Here's a quick solution to this issue! There's 2 Managers, 3 Head Admins, and 1 Head of Staff. There's more people to go to if someone isn't responding. Also Branch Updates can just go on the forums, and management can drop feedback & questions on the post itself, instead of having to be bothered with every small change. I see going directly to the manager every single time is avoiding the whole purpose of Chain of Command. You're asking from better communication from Coltable, but there's so many more people that can alternatively be contacted about issues that need to be addressed. Those people can then forward it to the Manager when he is free. It isn't Coltables job to inform the community about his personal life, and why he'll be unavailable for a small period of time, it's his job to ensure the server is running smoothly. Coltable has already done his job, by setting up a Chain of Command of competent management that is able to assist in that task overall.
I'm interested in seeing a counter response to this, if you're willing to respond again, but that's just how I see this in my opinion.