Those are not quantum computers they are classical computers that have been enabled to process data matrices. Not the same as moving amplitudes directly.
On what basis do you make that statement? The hardware is literally manipulating coherent quantum states of trapped ions or transmon junctions in the cases of IonQ and IBM, respectively. Noisy and unreliable, sure, but most definitely not classical.
Because it is doing it within a closed time series that is located in the past. Like predicting what the weather was yesterday in areas with no radar.
Cool, and useless.
No, that doesn't accurately describe either Google's nor Rigetti's quantum efforts. Google does make a classical matrix-multiplication circuit (TPU), but that's different from their quantum computing effort.
Not really. Different as in “BBQ chicken pizza” vs. “pepperoni pizza”.