I'm not going to harp on my list. I have worked with the 'partners' as you call them so perhaps I have a different view of the topography of the network(s). Semantics
Communication is key and communication that does not eat up your supports time or the webmaster's time (paid for by the client). Twitter is a good idea but not very secure for network announcements. I would suggest a means of email notification outside of relying on the default email account which is for billing and ends up being a general communication method (when it's used, much improvement needed).
The cost savings are in support time. NetStatus looks like it's all the old servers. Although colored status icons are not a replacement for sending emails explaining exactly what is going on.
I'm not a big fan of stress. I've had enough of it and in nature it has three outcomes:
The saying goes:
"That which does not kill us makes us stronger".