the battery design was too aggressive for current technology
Battery "design"? The phone company doesn't "design" the battery. They just call up the Ching Chong Very Fine Battery Company and say "we want 10 million LiPoly state of the art batteries x by y by z mm". All the manufacturers call up the same battery company. There's nothing "special" about the batteries any of them use.
That said, you may be right that these batteries are all ticking time bombs. We know that all models of all brands of cell phones (and vapes, and "hover" boards, and