User blog comment:DaNASCAT/Technical Update: October 19, 2015/@comment-126761-20151020133805/@comment-126761-20151023092933

Breakages have to be dealt with on a case-by-case basis - if the change that introduced the issue was a simple change, it can be fairly easy to back it out again (which applied in this case). However, if it involved more significant changes, reverting it out risks causing more problems. It can also be a waste of time: the time spent testing and rolling out the reversion can be significant, and that time might be better spent on simply fixing the problem.

However, I don't want to make excuses - the breakages shouldn't occur in the first place. We really appreciate everyone who let us know about the image issues quickly!