mahkra said:
RtL:
(The RtL rules make no mention of things that CAN be jumped, but do clarify that Scything Blades, Dart Fields, and Water CANNOT be jumped. This certainly makes it seem like obstacles that do not block movement can be jumped unless otherwise specified.)
The conclusion I would draw is that they copy-pasted rules from other sources. Scything Blades and Dart Fields have clarifications that they cannot be jumped in the original rules (according to your summary), and Water has such a clarification in the FAQ (remember the bloodsquids?). So they duplicated the clarifications for props that already had them, and added no new information to anything else.