Sorry, but no sorry.

I don't see that it is ok to make stupid of other people. I mean, it is ok for non-IT people/non-specialist/students didn't know that HTML programmer is not a thing or we can't just turn of the problem/bugs if sth gone wrong.

They aren't stupid. They just misinformed. Just smile (or laugh?) and explain to them.

No one is born knowledgeable of everything. We even learn how to walk, how to read, how to program.

By doing mistakes.