This is nothing - wait until we find out what Apple knew about the Iphone 6-series battery issues. That's a much larger and costly problem that they clearly hid from the public to save the cost of a recall that might have run into the hundreds of millions of dollars.
The battery lawsuits are going to boil down to whether Apple can be held liable for using the general phrase "power management" in their initial iOS update vs. spelling out the details of how the temporary throttling worked. Is that really an area where there are clear legal precedents or laws? Doesn't seem like to me. And forget about the actual physical battery part. Apple can roll out endless scientific proof about the known limitations of lithium ion batteries.