It seems a bit disingenuous to call it holographic doesn't it? I believe https://en.wikipedia.org/wiki/Integral_imaging is the technology. It has similarities with lenticular prints.
I found this print that uses 'Integral imaging' https://www.youtube.com/watch?v=f0MP6mW7BW0
https://opg.optica.org/ol/abstract.cfm?uri=ol-49-8-1876 appears to be a real holographic display.