This is a very sloppy definition based on how the term "gaslighting" has been recently (ab)used, but it's not the right meaning. Gaslighting refers to the very specific mechanism of deceiving someone into believing that their perception or beliefs are wrong, and thus convincing them that they shouldn't trust their own judgment.
It does NOT refer simply to any notion of misleading or deception, though that's how it's been used in recent years.