Why This is a Adrien Focused Episode
Yes, this episode had huge focus on Nathalie and Gabriel and their relationship, but Adrien felt like the main character this episode. And I think the reason for it is really special; it creates this role reversal!
Remember, last episode, the reverse love-square becomes true, and this is the continuation. The writers are showing us the reverse of what we already know; Adrien is the main character, Marinette is the deuteragonist (in this episode), Misterbug is the one making the plans and leading the charge, and Lady Noire is the partner who is in love with the leader of the plan. We see Adrien in the resolution with Nathalie, that is how the episode ends.
Although this episode discusses serious topics, the akumatization fight felt like a flipped Season 1-3, and I absolutely adored it! It was different, it was unique, and this role reversal really emphasizes the importance of the reverse love-square by bringing us a dynamic that is pretty similar to us, they just flipped it!
They also did not change central parts to the characters we already know. Marinette's fantasy chart about Chat is perfectly in character, and Adrien just muttering what's on his heart and Marinette freaking out is also something we would normally see. The role-reversal does not change all of the chemistry of the show, but shifts the focus on specific characters to create this effect!
This is episode deserves it's praise, and I have not even scratched the surface. Now, excuse me while I go to the side and gnaw off my arm with all of the Misternoire and Nathalie content we got today AHAHAHAHAHAHAHAHAHAHAH.