Genie Combat Styles

Alright, so I've got it in my head to give a Suli a try with Master of Many Styles monk.... However, while reading the feats, this odd little thing caught my eye.

Shaitan Style: While using the Shaitan Style and Elemental Fist feats to deal acid damage

Marid Style: While using this style and Elemental Fist to deal cold damage,

Efreeti Style: While using this style and Elemental Fist to deal fire damage

And here's the confusing part.

Djinni Style: While you are in this style you must use Elemental Fist to deal electricity damage

The confusion lies in the sudden change to 'must' with Djinni. This makes me question weather or not it's meant to be like the other 3, or if the other 3 are meant to be "must" like Djinni?

I think this calls for an FAQ Errata. Otherwise, does anyone think this makes any sense at all?

It does also keep in mind that you have to use the correct element for the specific type of genie bloodline you have.

Bump, since my question appears to have been largely ignored. I already know that in order to get (most of) the effects of the styles, I need to use the appropriate element... That was not my question.

Who cares just rule it differently.

It's a bit strange, but I'm pretty sure it has to do with Djinni giving you that dodge bonus vs AoO... (instead of some effect that only works on a single attack using Elem Fist)

There's some chance it's an error, but meh.

It's pretty weird. I've dug all over the place, and I don't see any particular reason that that wording should be different. My guess is that, if it was intentional, it was to keep people who didn't pick electricity from wanting to take the Djinni style line anyway for the Dodge Bonus vs. AoO, electricity resistance, extra EFs/day, and the ability to use an AoE punching deafen, which is a pretty lame set of things to spend three feats on, and not really any better than what you get from pursuing any of the other lines with the wrong fist type.

The style feats in general have some odd wording in them - for example, some of them say things like "While using Marid Style, you gain cold resistance equal to your base attack bonus, or monk level plus base attack bonus gained from levels in classes other than monk, whichever is higher", but that second quantity will always be at least as high as the first quantity, making mention of the first quantity redundant. (If you have no monk levels, then they're the same. If you have monk levels, the the later one is higher, unless you've taken some hypothetical future monk archetype with better than full BAB.)