It is not surprising that FedEx has declined to submit evidence for scrutiny. It’s not time for that yet. They will be required to do so in discovery and they better hope they can at trial but right now we should not expect to hear anything from them other than “admit, deny, insufficient basis to form a belief and therefore deny.”
It’s just too early for an evidence based discussion. This is the nature of the civil action.
I went to law school and am married to someone who works in litigation at a top 10 law firm, I understand very well how the legal process works both technically and in economic/strategic terms.
seems the former, so you can see why the public is unimpressed