Yes, that’s a perfect example. Don’t read too much into it. It’s a term used mostly by commentators and spectators to basically evaluate the abilities of both players. If a player consistently uses tactics that only works on bad players against someone who is good, that’s usually deemed to be ‘disrespectful.’ If a player holds some of their cards because they know their opponent knows how to stop a shenanigan, that’s usually ‘respectful’.
Your opponent is half screen away with a super/ultra that can go through fireballs. What do you do?
Keep throwing fireballs willy-nilly:
This would be considered disrespectful because you’re not ‘respecting’ the fact that your opponent may have the reflexes to super through your fireball.
Stop throwing fireballs:
This would be respectful because you’re anticipating that your opponent has good enough reflexes to get through.
What it really boils down to is how well you can read your opponent’s skill. You need to adjust to what the player can and cannot do. If you keep throwing fireballs against a player that has proven themselves capable of going through them on reaction, then that’s a bad idea. Similarly, if you stop throwing fireballs even though you know that your opponent is completely incapable of getting through them, that’s also a bad idea.