The guy in that review brought up a good point that I never considered before, but does solidify that the bigger problem in this script is simply bad writing, is that while it is perfectly acceptable and within character for Samus to freak out at Ridley's appearance, even if we disregard the Primes, she has fought him thrice already, four even, if you count Mecha Ridley.
SO for her to get a PTSD attack this late in the game, if you'll pardon the pun- when she has faced down her root cause and utterly annihilated it several times, doesnt make TOO much sense. At least not THIS bad.
I mean, I would normally make the argument that she was surprised to see him back after Zebes was destroyed, and that seeing him rise almost literally from out of the flames of hell, (must say, the location of the battle, and the way Ridley shows up for it was straight up gold) triggered memories of the massacre she witnessed as a child, but... again, she has faced down her demon numerous times already, and even seemingly dealt with it for good the FIRST time she defeated him, in the metroid manga. I get that in keeping with the idea of a narrative driven Metroid game they really wanted to allude to the Manga and Samus issue with Ridley, but it feels like it was a little bit late in the series to try that. At least a better explanation or better scenario, better explanation, (Ridley initially doesnt affect her but suddenly she begins to have flashbacks about the massacre of the colony, what witht he fire and smoke and all that shit and she falters... that sort of thing) would have worked better.
Oh Also.
"Zebesian".
No, that is not a Zebesian, Samus. That is a Zebesian Space Pirate maybe, but not a "Zebesian".
Back to the manga, and Adam for a bit also- Thats another thing the manga seems to have done better. The portrayal of Adam.