Very much agree with you there. I've seen backup solutions with crazy network ACLs that would allow a server to be backed up; but the system could not push a restore... Imagine finding that out at 2am Sunday morning! haha
Oftentimes, we get so involved on finding out how to implement new and cool stuff, we forget to ensure that what we have right now is dusted off and tested every quarter, or 6 months, or year, etc. Personally, I have always had fun with DR scenarios and testing, but I have worked with some admins who absolutely despise the thought of spending a day or two playing 'war games'. To each their own, but proper planning now can save you a lot of headaches in the future.