That is the excuse but I don't think many people are even getting to testing the releases. The August update broke my software in a fairly fundamental way. I've been amazed by how few support issues that has caused so far. I can only conclude most of my customers neither upgraded nor tested that release so far.

This is where context sensitive mitigation come in to play, managing risk and balancing it against business priorities, keeping all stake holders in the loop and part of the decision.