seki108

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Is it the steps?

No, just the 1% encounter rate Pokemon that can take a horrendous amount of time to catch have a higher chance to flee if you do any of the options, at least in some cases.  Even catching the more common Hypno and Girafarig were frustrating and took almost all of my Safari Balls on them alone.  That's not even mentioning shinies.

Apparently according to some digging into Gen 2 data, other pokemon never found in a Safari Zone have data for fleeing from battle randomly.  It can be inferred that this was debated to be a added as a regular feature even to some mons outside of the Safaris.  I'm VERY glad this never came to be.

And now I'm VERY glad that never came to be as well. While it does make sense to add such a feature to Pokemon outside the Safari Zone, it's just better off without it.