I consider any mission that starts with an unskippable cut scene, especially one that lasts several minutes, to be bad. Needlessly wasting the player's time is unforgivable.
I consider any mission that instantly fails if you step outside an invisible and unstated boundary, especially in an open world game, to be bad. Punishing the player for creative thinking is unforgivable.
I consider any mission that presents a challenge, and then cheats to force failure when a skilled player is about to succeed, to be bad. Breaking the physics of the game world in order to artificially cancel excellent play is perhaps (barely) forgivable, but terrible game design.
So I guess I don't get to be in your gang. But I'm glad you had a good time!
(P.S. The game world was beautiful, at least. Props to the folks at Rockstar who did that.)