I haven't seen proof of such. If that were true, the consumer protection agency would have been all over it by now and would say something about it. Making assumptions without real evidence, isn't helpful to anyone.

If a bike frame made by Tern breaks in 2017, for example that does not mean the frame was made in 2017. Most likely the frame was made in 2011 or 2012, but it didn't fail until 2017. Perhaps the original owner moved, sold the bike, etc and never get the recall notice before it was too late. So its still possible to see more 1st gen bikes failing in the future.