Non-Spellcasting/
Creature Swap defeats the effect because the normal monster is not a valid target. The Burst Stream ruling is much more analogous to the RFTDD as both are residual effects being ignored instead of a currently resolving effect failing.
Jinzo is a Preventer as well as a Negator. As long as he is face-up on the field and his continuous effect is active you can't Activate any Trap Card (Preventer). Also once his continuous effect has kicked in he will immediately negate the effects of any Continuous Trap Card on the field (except for
Skill Drain of course) as well as any trap card that resolves past the point where his effect has kicked in.
Wildheart is much simpler, he just is not affected by Traps. No true negation happens, he simpler ignores the effects.
So if you were to use
Rope of Life on Wildheart he would not gain the ATK boost. But if you return
Jinzo with
Rope of Life he does gain the ATK boost because his negation effect is not coming into play until after
Rope of Life has already resolved.