Orbital Kinetic Bombardment: Calculating Rosmontis' DPS

With the arrival of the amnesiac cat daughter, people have been recommending her S3 as her bread and butter and worth dropping masteries on, but by how much is it better?

I then decided to spend a good part of my day fumbling around spreadsheets, and made this, a DPS comparison of her skills with respect to enemy DEF

https://docs.google.com/spreadsheets/d/1LdAZ3fyQqSv4e2h_rIlk4sqaUR30uXG08htXrAsYCN8/edit?usp=sharing

Things of note that I noticed while making this

1. Ros S2 has lower calculated DPS compared to S3, but it has a large AOE and better uptime so it has higher potential DPS

2. Ros S3 Wall has a -DEF for blocked enemies, letting her pump more damage

3. S2M3 has comparable damage to S3 SL7 if the enemy is being blocked by the walls, so if you don't have the materials to get S2M3, make sure she blocks the enemies with her walls.

4. S2 SL7 to S2 M3 gains are tiny, it's kinda sad to look at.

If you find any errors in the calculation, please tell me! This is my first time going all out and not just relying on back-of-the-envelope calculations for DPS.

TL;DR: Ros S2M3 isn't worth it because of how little you get out of it. S3 outdamages S2 in single target situations, even at SL7, but S2 has higher potential DPS. Land her walls on enemies, it's a great damage boost for her.

EDIT: Corrected some calculations.