As a player, I wouldn't mind it, provided the DM has a good, entertaining idea. I don't mind a bit of railroading if it takes the game in a good direction and everything remains fun. The ability to affect outcomes is crucial, of course, but a nice paradigm shift in-game is not bad if executed well.
As a GM, my players know that things are often not as they seem, but I am generally trusted to come up with interesting and compelling games. The scenario in question seems interesting, and was probably intended to be fun and interesting for the player whose character had the pre-game event.
If a player showed such a lack of trust in me that he handed me his character sheet after a campaign twist, particularly a player who I thought would have a great time with something like that, I'd take it, tell him I understand that we have a style conflict, politely show him the door and fill his spot with the next player on the waiting list.
As a GM, my players know that things are often not as they seem, but I am generally trusted to come up with interesting and compelling games. The scenario in question seems interesting, and was probably intended to be fun and interesting for the player whose character had the pre-game event.
If a player showed such a lack of trust in me that he handed me his character sheet after a campaign twist, particularly a player who I thought would have a great time with something like that, I'd take it, tell him I understand that we have a style conflict, politely show him the door and fill his spot with the next player on the waiting list.