True, to a degree. But let's imagine that (1) FedEx felt that profits were more desirable than legal expenses, and (2) FedEx had some power over the sending and contents of the notifications. Might FedEx decide to start following well-regarded standards for writing and sending legit-looking electronic notifications? And iterate from there, as an ongoing strategy?
You can spend as much as lawyer money as you want on arguing whatever nonsense you want, reasonableness is a common standard so sure, people will have spent lots of money pointlessly arguing about it but that's not a problem with reasonableness.
