Each brand will have their flaws or occasional problems but Federal never offloaded a shit tonne of their old product at cheap prices.
All of the Kumho stuff coming out now is all new stuff, though, so anything bought now is going to be ok. But it still doesn't excuse the fact that a large company can do something like that and then not expect anyone to say anything.
If you've got a tyre with an 8 year old DOT code, then be prepared for what may happen, that is all I am saying.
Federal may be far from the best and may have it's fair share of problems but as a company they will back their product and any claim made against them will be dealt with professionally.