When it comes to programming, almost every way. Try getting a job if you only know how to program a TI-84. Now compare that with knowing python or JavaScript.
> It’s far easier to write a minimal program on a TI calculator like the TI89.
Yes, and far harder to write anything but a minimal program. Completely impossible to write anything in a commercially used language.
> No App Store account or Internet required.
So what? These are widely available.
> It’s included in every calculator for free, with function integration into the hard (ie easier to be precise while typing) keyboard.
So what? You can’t write anything resembling a modern program. This is a way in which the calculator is incapable of serving as a general purpose computer, not an advantage.
I’m not against calculators. I learned to program on my father’s TI, long before I had access to computers. I still like keystroke programming an HP-15C for repetitive calculations today. But there is no way that is better than Pythonista or the ilk for programming in general.