I'm of two minds on this one. Generally I'd agree with you. I think plot/story have too often been emphasized to the detriment of repeatability in theme park attractions (Dinosaur in particular would benefit from a less-specific, more randomized plot/ride script).
With Kilimanjaro, listening the exact same poacher storyline was getting a little tiring (even though bits have been dropped). BUT a major portion of the original Safari was the high speed chase at the end through the flooded canyon with geysers spewing (and no animals to see).
When done right and as it was designed - with high speed, really bumpy driving, lots of water effects (falls & geysers), shooting/speeding poacher jeeps, AA elephant - this was a very fun and exciting finale. The poacher storyline was okay because it led to this payoff.
However, I believe this finale segment has been reduced by TDO over the years and now is pale reflection of the way it opened. If you take away the poachers, there's no impetus to speed through the flooded canyon (which is pretty lengthy), although I supposed one could be fabricated.