Sure, but it's usually not in a mission critical system, and it can get phased in over time - and almost never a couple hours before a major planned event of some sort.
Major unforced error here, though I **probably** shouldn't be surprised.
Source - Software Engineer for over 15 years that works with high profile clients on high availability, mission critical systems on the regular.
Seriously guys - get a quote for a website redesign, be open with the community about it, and kickstart that sucker. I guarantee you would get a **significant** part of that covered by voluntary contribution - give a percentage off reward for a duration of time as a kickstarter tier bonus.