That's not what you said. You claimed it was a lie referring to Time Machine, not local backup options on iOS. macOS backup solutions are pretty much irrelevant, because it's obvious you can backup macOS using any tool you like, it's a desktop operating system where the user can run binaries with administrator privileges, unlike iOS. The compelling inference is they were talking about iOS, making Time Machine irrelevant to the discussion.

And there is a significant difference between offering an ill-informed opinion and lying. One can be reckless or negligent, but not a liar. To be a liar, they need to positively know they are wrong but post it anyway.

I was hoping you'd say it was simply used for rhetorical effect. I must say, I'm a little disappointed you're maintaining your position. Sometimes, it's best just to assume good faith.