I'll agree with the "using simulated mouse" part, but not object navigation part. It makes no sense to separate that out from "accessible" it's just another way the keyboard is used in the current Windows ecosystem to get to things. And it's probably going to become far more common, not less, and one will look quite foolish if you insist on calling things accessed by object navigation "inaccessible."
Brian - Windows 10 Pro, 64-Bit, Version 2004, Build 19041
A gentleman is one who never hurts anyone's feelings unintentionally.
~ Oscar Wilde