Yea, I just found out over the past 2 weeks or so. Apparently the warnings started coming through about 2 months ago or so, and they were shut down about 2 weeks ago. I've gotten a few emails from these clients over that time.
Personally, I'm a bit paranoid/cynical: I would be expecting them to find any reason to drop free accounts even if active. I can't really blame them, either.
No I don't think we can worry about that. The warning that the accounts would be deleted were repeated and well in advance.