Don't blame them, probably feel massive survivor's guilt. In some ways Reddit burned them the most. Reddit cut everyone else out and specifically left these two apps.
These appdevs probably feel guilty for still being involved, mad that they were singled out, glad that they can still serve their users, anxious about the eventual hammer falling for them too - just to name a few
Major kudos to them for adding support for Lemmy. That was brave of them to say "Yeah thanks for keeping us on, I guess, but we're going to move our userbase off your platform over time"