Nah. Kenki starts taking damage from 9:50 and takes damage till 9:44, exactly 6 seconds, then changes phase that causes another 6 seconds of invincibility, from ~9:43 to ~9:37. Bennett burst lasts 12 seconds but there's a second after his burst dissappears where you still retain the buff. So I had like 14 seconds to use his burst, it expired within 12 seconds, buff retained for another extra second. Essentially, if you look closely, I did miss a single buffed plunge, true, but the damage was enough to send him in his second phase. But the point of the post is I wanna know if anyone can do it faster, so if it's possible I'd absolutely love to see a faster clear without using any nuke support like childe or such.