Right. Though Teller probably makes most of his money from performance rather than selling tricks. I know P&T do a lot of their own research and creating their own illusions, they may sometimes sell them to other pros but I doubt they engage in the large scale "kit" selling a lot of the less famous magicians do.
The problem here is telling how much of this Teller can lay claim to. He has been performing it a long time, and it's one of his signature tricks.
However, the heart of the trick is not terribly original. Illusions where a drawing or shadow interact with/mirror real life objects are very common and old. What teller did was take a unique version of it with a rose and package it up into a whole performance piece...and I think the issue is that this guy took that wholesale and is selling it basically as "Teller's rose trick" rather than using his knowledge of how the trick worked to create something similar but still unique.
The former is troubling, but without allowing the latter professional magic would grind to a halt.