This was with the default settings after flashing Crimson (which I did to recover from the infinite boot loop), so if there is some active step that needs to be taken to enable suspend, then I had not done it.

> When was it?

This was within the past month. I see two possible reasons you didn't run into it:

1) You have been applying the updates as they come out, whereas I took a dusty phone that hadn't been turned on in years and ran the update.

2) You were already on crimson, so maybe they only broke byzantium (or whatever version it was on from years of sitting unused and then hitting update in the software center).