The big screen in the dome, the 2 big queue boards and the ride boards at the rides in question all state the rides which are opening at 11 - how can they make it any clearer?
As a guest your not expected to know the reasons behind ride capacity- why would you?
As for inferno and it's 2nd train - see above - we don't know why it was having the 2nd train added at 12, maybe there was a fault, maybe it opened on 2 but needed to be reduced - its upto the park to manage that and when things are not working up to them to remedy it and or take the flack - I can assure you rides closed will bother management at the park much more than it does you or I.