As an infrastructure provider, I disagree. Customers expect to find the answer to the question "did I do something wrong, or are you having problems?" on the status page.
While we've listed every outage affecting >1 customer since 2004 on our status page, the issue is always expressing each outage in a way that allows a customer to identify that _their_ server is affected by a particular entry.
That sometimes involves knowing that their server is in a particular data centre, or that it is connected to a particular switch, etc. and we do our best to make sure that people can identify their problem, if nothing else than by timing, i.e. making sure we list something ASAP.
But status pages are still very useful once people start calling in - support can positively identify that yes, you are affected by this problem and you can track progress at that URL. If we keep updating as we promise, bang, that's one support call (at most) per affected customer.
So even for a minor problem - broken switch, VM host machine, power failure in a rack, that's worth listing from my point of view.
As I said above I'm looking to tie our databases and some basic network monitoring into it this year. That way we can proactively notify people affected by a particular problem, as well as continuing to list even small problems publicly.