Most of that wouldn't have been covered on extended warranty and the paintwork has a warranty anyway.
But the issue is the differences that are no longer covered such as headlights, exhaust, shock absorbers, engine mounts, multimedia system (which the assumption is that is the whole system headunit, amp, screen).
Possibly the headlights stopped being covered on the very latest extended warranties but not supporting the multimedia system which would cost thousands to replace is a concern.
Whether Lexus still choose to cover these items remains to be seen, but by the letter of the contract they certainly don't have to.