On the one hand, you're absolutely correct. On the other hand, there is some overlap in classification here: experience-altering substances. OP's intuition is

On the one hand, you're absolutely correct. On the other hand, there is some overlap in classification here: experience-altering substances. OP's intuition is, "this person's entire mental interest pool is consumed by some form of escapism." There's some fallacy in this equating, but the heuristic isn't way off.