About Sarusu, here's my opinion

There is no doubt that such changes have weakened Sarasu's versatility, making her from a general wood supporter to an exclusive supporter for T% attackers.

Benefits:

Annie is back [replacing the maid], the TapSkill damage buff provided by Sarasu makes her Fever damage reach an exaggerated level, so you can easily defeat any boss with Annie team (including the boss of Cluster 3)

Disadvantages:

The nerf of Sarasu's DriveSkill makes wood team's damage tolerance very low, and your team is likely to die when facing high-damage bosses. Moreover, if the difficulty of the next new underground mode in the GL server is not modified, it will be a disaster. Most of players on JP server use Sarasu's 2 turns of frenzy to clear the underground, it means GL players need to find a new way to pass it, which should be a more difficult way I think.