/Me scratches head
Can you unpack this? Because as it stands I'm inclined to ask 'why not', but there's a few things you could mean by this.
Sure. Firstly and probably least important is this: People don't optimize and Charms aren't a distinct in-setting thing. I think even lots of people who do heroic things IRL don't spend their time self-examining how to be a perfectly optimal person. I don't think most Exalts are gonna be the sort of person who sits down and thinks about their newfound superpowers and tests everything to get the absolute most effective result. They're gonna go the directions their personality leads them, and a lot of times this won't be super optimal. Mr. Athletics might actually be pretty shitty at parrying and dodging, going just brawl/resistance to tank stuff like crazy, but leaving gaping blindspots in his build. Nine times out of ten it doesn't matter, because he's an Atheltics/Resistance master, maybe with some brawl. Doesn't really need to be super optimized. Then he gets in a fight with someone who can keep up with him and hit him hard enough, and then he dies, and this feels way realer to me than "I am so smart and understanding of the exact nature of my superpowers that I realized I could optimize and be prepared for literally anything". Which feels really silly to me.
Secondly? A lot of
players don't optimize, and
fuck treating 'everyone is optimized and ready' as a default assumption and force your players to sink or swim, that shit is not fun unless you sign on for it.
Thirdly, setting where everything is optimized is boring to me. I like building enemies with deliberate holes in their builds, because they were the sort of person that wouldn't think of this as a disadvantage, or they thought their defenses were more absolute than they were, or they didn't think they'd ever be caught without their bodyguards, or whatever. People make mistakes! People make dumb choices! And Exalts are powerful enough to avoid the consequences of not thinking shit through for quite a long damned time, if they aren't killed young!
Exalted isn't Pokemon. You don't fight my Dawn type with your Twilight type and use Total Annihilation because it is Super Effective.
Exalted is a game where beating a Dawn in the arena of Dawn stuff requires another Dawn, and defeating a Twilight in the arena of Twilight stuff requires another Twilight.
You can certainly 'defeat' a Dawn by changing the arena of conflict, because Exalted again isn't Pokemon and not all conflict is a race to see who Faints first. Dawns have goals such as 'secure a city' or 'rescue my loved ones' or what have you. If you walk up to a Dawn in front of the gates of his city and try to Total Annihilation it then damn straight he's going to volleyball that thing into a nearby ravine. Instead you should do stuff like plants rumors to lead him outside the city (ie, a Night Arena thing) and then, when he's gone, you can nuke it all you want. Or maybe you Zenith him by turning the populace against him or Eclipse him by tricking him into surrendering the city to you or what have you.
But no, I don't think 'I cast a spell' is clever play that should be rewarded by bypassing significant peer opponents in their area of specialty.
Yeah I strongly, immensely, completely disagree with this approach. We'll just have to disagree on how this stuff should be handled.
People who think they don't optimize are hilarious.
You try to make sure your characters do things well, right? Welcome to optimization.
Stringing together a set of powers you find cool and want to play should produce a functional character. This is something I think should be core to any game, and it's something Third Edition actually does fairly well.
(It's worth noting, I think, that I am the player who sets out half the time to be literally unkillable.)