Now I see. I didn't think that was an actual effect with her within DOA (didn't expect it to be an actual thing of being evil). The next game will probably explain it more in detail since she was only added to DOA5 with no story of that.
Like Mama said, is due to her having the same power as raidou (probably for being his daughter like ayane), she also doesn't know the extent or the control of said powers, as 2 of her win quotes kind of imply that.
Some interesting dialogue in the game. Still got some unlocking to do that i'll probably attempt tomorrow. I'll try to see the friendship events with each of them and see other bits.
I honestly gave a lot o thought about that some time ago. Honoka doesn't comprehend the extent of her powers, she sometimes lose control of it in the heat of battle, acting on instinct perharps, and her character development being focused on she trying to control said power.
I think we are going jumping the gun a bit here. She probably has potential for control, though If you unlock her friendship skits with Yukimura, Tokitsugu, and Hayabusa, they mention that while she can copy, it pales in comparison to the original in power and capacity, but with enough exercise (according to Tokitsugu) she can do things that might be 'different' than the original.
Honoka's response? she says that she doesn't like exercising (not even kidding, is she joking here? hard to tell when the dub is in JPN). If she's serious, she's literally missing out here.