Unless English isn't your primary language you should know what the word 'bonus' means. It being fast would be described differently as in "turn meter gain". Your theory also wouldn't stack up against the fact that the same team composition will succeed on different attempts which mine, and my guildmates, has in the past. Please also see below screenshot of IG being at 98% Turn meter when the BONUS (theres that word again) turn gets activated.
This ^^ KD doesn’t CONSISTENTLY get the “bonus turn”. I’ve done this event a handful of times now and play it out the exact same. Why all of a sudden this time, he got (2) turns, but usually he doesn’t? That doesn’t tell me it’s a “speed” issue. That tells me it’s a mechanics issue (or a bug).
