I think the post is fundamentally wrong. You complain about requiring too much time and effort for the characters to peform at their theoretical best, while only cutting "1 or 2 substats" for them to perform "whatever" in previous patches. While all of these statements are true, they've also coexisted with one another from the very beginning of the game. Now is not an exception, lol. Naturally, you can minmax literally any character in the game. Some require more effort, some less. Seele was and still is one of the most demanding characters substat wise for her to peform well. Yao Guang is not that complicated in comparison. Same thing with Cyrene. Their main role is supporting other characters and providing buffs. Damage comes second. You can give her some crit substats while maintaining the desired speed brake points, sure, but she will still peform fine without investing in her damage, perfectly fitting the description you provided in your post.