I think it depends on the kind of story as well as the kind of storytelling involved. Fics involving multiple first-person narrators? Unless the author has a strong command of their characters' voices and can instantly express who's narrating, then yikes, I definitely agree that's a pain. But I do think multiple perspectives can be a powerful tool to elaborate on a single scene. Just building off the Gym Leader example from before:
Originally Posted by Kantomasta
Reina struggled not to bite her lip, gritting her teeth and exhaling sharply. The match definitely wasn't going well; Morty stood calm as ever on the opposite end of the battlefield, his posture relaxed, arms loosely crossed. Even as her Quilava continued to leap at his Gengar futilely, sparks streaming from its mouth, she could tell her opponent's superior speed had decisively shifted the initiative in Morty's favor. Swallowing soundlessly, she thrust an arm out sharply, quelling the nervous shaking with dramatic gestures. If she wanted to turn this battle around, she needed to be a little bolder...* * *
Morty's fingers twitched as his Gengar narrowly dodged another burst of flames, floating above and out of range not a moment too soon. This Reina was tough, quick on her feet and decisive. Win or lose, it was evident that she was deserving of the Fog Badge; he doubted she'd need more than one rematch, if even that. She had stood firm, even when Gengar had blitzed her Kadabra with a lightning quick Shadow Ball. Even now, he could read the fiery energy within her, just raging to get out--sure, there was a hint of nervous tension there, but the steel in her was in plain view. When she slashed her arm out, ready to issue a command, Morty merely smiled to himself. Time to see what she was made of...
It's a very rough and blunt example, but I hope you see my point--dynamic scenes can benefit from multiple viewpoints and in-character interpretations. It's especially effective if you're dealing with characters who aren't very self-aware, particularly if the narration doesn't allow for much introspection.