If you're going to call someone wrong, then you should check to make sure you're right first. But you aren't:

https://en.wikipedia.org/wiki/Through-hole_technology

"Plated-through holes are no longer required with SMT boards for making the component connections, but are still used for making interconnections between the layers and in this role are more usually called vias.[2]"

Even your own link says nothing about PTH, and just discusses vias for use in SMT.