'Moar speed' is not really the point of 5g, and as usual the main advantages are not widely talked about because a lot of the media doesn't understand them and how to communicate more advanced concepts to readers. In my mind the biggest advantages and shifts in thinking are virtualization and network slicing [1], and enabling IOT [2].
[1] https://www.sdxcentral.com/5g/definitions/5g-virtualization/
[2] https://www.ericsson.com/en/about-us/india/authored-articles...