I was just thinking about Axle's abilities.
I don't think it's possible to make her tactical as fluent as Octane's tactical.
She throws out a disc while Octane has a needle. The nitro gate disc is too embedded into her character, for example artwork for marketing. Removing her disc would change her whole concept.
I actually think Axle is a great Legend and concept. I haven't played with her a lot, but she seems fun. I would rather have her as a teammate than Octane, because her tactical is viable for her team.
Did she need some minor balancing? For sure. Every new Legend should be balanced accordingly.
One of my main issues with her tactical is that it isn't removed from the map. IMO, her nitro gates should not last forever on the map. I could say the same about Octane's jump pad, but at least that's his Ult. Her nitro gates should only last for 90s, or so. That's plenty of enough time for her and her team.
Another one of my issues with her is that she has a perk to have 2 Ults. I think 1 Ult is more than enough, considering that it levitates enemy players into the air. She needs to use Ult accelerants like everyone else!!!