Of course it does say so. You would have to "or" the comparisons itself. So that you have 4 comparisons in that event that are or'd. With CC you would do
Block.AnimationName = "block1"
Block.AnimationName = "block3"
Block.AnimationName = "block13"
Block.AnimationName = "block14"
and every line is one condition (4x Comparison, 3x OR). I guess then it isn't possible to "or" conditions in C2? But in the manual it is described as if possible:
Maybe there is "evaluate" as a system condition?
EDIT: In general, remember that any logical operator just compares to boolean values (TRUE or FALSE) and nothing else. Those values may be replaced by expressions/conditions that result to either TRUE or FALSE (like "if a is greater b"), but it needs to be something that results in a boolean value.