I think the safety and effectiveness of electrobraid depends entirely on the posts you use and how deeply they're sunk. There's two places near me that use it - one has posts of insufficient diameter, not sunk deeply enough, and not adequately braced in the corners, and the fence is down after every storm. I wouldn't turn horses out in it, ever.
The other has wooden 4 -6 " posts, 12' apart, with 1/3 of the post in the ground. It looks attractive, and is absolutely secure.
A compromise can be what SR suggested; using a mixture of wooden posts sunk properly in the ground, with metal T-posts in between for stability.
I would not trust any fence that's all T-posts, or has a long, uninterrupted run of T-posts. Too easy for a tree limb or an itchy horse to push over.