Deferred actions showing in 'Available'

See below screenshot. Parent action group is deferred, action is showing in ‘Available’ view. This may be related to the remaining vs. available issues for on-hold contexts, anyone seeing similar issues?

Oh, cool. My email shows up here automatically. Didn’t know that.

The problem is that those are old defer dates, hence the tasks are available. A strike-through on passed deferred tasks would indicate to me that I need to defer some more.

Another open question is this:
If you have a task that was deferred to a date that is two weeks old and I press the button to defer +1 week it defers to 1 week back. I would have to press +1 week 3 times to defer it 1 week. Shouldn’t the +1 X be from the current date?