TheSword
Legend
#1 is a railroad. You're moving the encounter into their path no matter what they choose.
#2 is not a railroad. Random chance is random chance. It might happen or it might not.
I’m surprised that you think random selection is sufficient to prevent railroading. That’s good to know.
All I need to prevent my ogre encounter being railroading is to design a party of Orcs encounter and then flip a coin.