Boar Shaman bonus feats have steeper prerequisites than other animal shaman types?

[Analog]

The Boar Shaman bonus feat choices, which replace Venom Immunity at 9th level, seem to have steeper prerequisites than other animal shaman types. Perhaps even impossible to obtain.

Is this an error in game design? Is the Boar Shaman intentionally made to be difficult to play?

Bleeding Critical requires Critical Focus and a BAB of 11. Critical Focus requires a BAB of 9. A druid doesn't see a BAB of 9 until 12th level and a BAB of 11 is not until 15th.

Diehard requires Endurance.

Improved Overrun requires Power Attack, which requires a Strength of 13.

Only Blind Fight is a prerequisite-free bonus feat. All others require early-level feat and ability score choices to meet the prerequisites; choices that would handicap the Boar Shaman's spell casting if followed.

Is this how the Boar Shaman bonus feat choices were intended?

[Eric Clingenpeel]

I don't see anything wrong with those, except maybe bleeding crit. If I were going boar shaman I'd probably get endurance and PA as soon as I could anyway. Though I'd probably want Diehard before 9th.

[Bobson]

I'm sure it wasn't intentional, it just was based on what made sense for a Boar-themed character. On the other hand, if you're playing a Boar Shaman, you know what your choices will be, so you can prepare for them.

There's nothing anywhere in the rules that I know of as to what happens if you get a bonus feat you have to meet the prerequisites for, and you don't qualify for any of them.

[Varthanna]

Bobson wrote:

I'm sure it wasn't intentional, it just was based on what made sense for a Boar-themed character. On the other hand, if you're playing a Boar Shaman, you know what your choices will be, so you can prepare for them.

There's nothing anywhere in the rules that I know of as to what happens if you get a bonus feat you have to meet the prerequisites for, and you don't qualify for any of them.

And there really should be. This was brought up in a few other threads recently (one was a cavalier archetype with Spring Attack as a bonus feat, but not dodge or mobility)