That is the face of a woman who has had it with dying over and over to this motherfucking boss with it's motherfucking lack of feedback, its motherfucking high damaging attacks AND IT'S MOTHERFUCKING REFUSAL TO JUST FUCKING DIE!! JUST FUCKING DIE YOU MOTHERFUCKER!! JUST FUCKING DIE!!

I saw Raven Beak-X more as the finishing event where you completely destroy the boss after almost dying to it, similar to using Hyper Beam against Mother Brain in Super or the Ice Beam against the Omega Metroid in Fusion.
Though the event could have been a bit more involved, maybe having first to move around and position Samus to hit him in a specific spot before delivering the Hyper Beam, similar to the ending of the EMMI encounters.