Mostly because i like the flavor, and im trying to make a dancing bard which i imagine inspire awe would work better. Unless im missing something, I don't see how you can inspire courage by dancing feasibly
By RAW, you can't inspire
anything by dancing. All bardic performances require some kind of audio component - song, poetry, oration, chanting, playing an instrument...
It would be fairly straightforward to houserule that though. Instead of being nonfunctional in silence, your performance would be nonfunctional when out of line of sight and so on.
If you meant that from a verisimilitude perspective, you don't feel dancing is as good as singing for cheering on your teammates, then I guess we'll just have to disagree. However, I would point out that, for example,
Fire Emblem has an entire class dedicated to that premise.
If you're making a dancer, I'd recommend taking a look at
this old thread for inspiration. The premise is basically to get as many things running off Concentration as possible, then use
Undersong to replace Concentration with Perform.
Also check out the feat Snowflake Wardance and the Slippers of Battledancing.
If homebrew is allowed, take a look at SirP's
Wardancer.
All that being said, Inspire Awe isn't
bad. In fact, it's pretty good! Perform checks are ridiculously easy to boost, which means the DC to avoid being Shaken is quite high. It also doesn't have the clause about not stacking with other fear attempts that some other abilities do, which means you can fear-stack fairly easily. If you wanted to, you could probably make a solid build out of this.
The problem with Inspire Awe is twofold. First, Inspire Courage is
really good, and you have to give it up in order to get Inspire Awe. It's trivially easy to get your IC bonus to +5 or higher, even at low levels. That +5 is multiplied by every attack your party has, which adds up quickly. And as I mentioned earlier, you can do other things at the same time, so there's virtually no action economy tradeoff.
Second, fear stacking isn't really a great schtick, especially in mid-high levels. As you level up, you tend to encounter more and more things that are immune to fear or mind-effecting effects. If you invest heavily in fear stacking, then those resources are wasted every time you come across something your tactic doesn't work on. And since Fear is such a crippling debuff, you can expect your DM to put you in a lot of situations where it doesn't work for whatever reason.