As I understand it, the core purpose of art is communication. Using a graphical editor to create web pages is still honest art in my opinion, because although you’re assembling it out of larger primitives, you’re still communicating a substantial message. It’s similar to collage; the pieces you’ve assembled aren’t your work, and the viewer knows that. The important part is how they’re arranged and the message that arrangement communicates.

AI-generated art feels deceptive and hollow to a lot of people because when we see art, we expect it to communicate something substantial, but in the case of AI art, the model can’t magically add more meaning beyond the words of the prompt. Not to mention, the cultural grand larceny involved in creating AI art tools leaves a bad taste in most honest people’s mouths.

You would still need to be able to displace suspended particles, bacteria, and small insects, otherwise you wouldn’t be able to teleport outside of a clean room

You could pass through anything as long as you’re willing to destroy it in the process

If you work in demolition you could take out a wall by continuously teleporting through it, if you wanted to do typical superhero stuff it would be good in a fight but nonlethal attacks aren’t really an option

Being able to teleport into a region already containing air without creating a nuclear blast requires that you can already either instantly displace the air in the target region (which would make a Very Loud Noise) or switch places with it, so there are possible interpretations of the power where teleporting into a fence would leave behind a detached section of fence or bend it out of your way