1, sun isnt too common, and its not something you should worry about.
2, there are other fundamental parts of teambuilding forgotten, which isnt a large problem but still exists(mainly hazard removal)
3, movesets are helpful for more entire team renovations rather than just one pokemon set changes. You can also add a paste or something for the final part
Also, giving too many options can lead to making it harder, as they dont know entire what to build with to make that teamstyle work. So, if you wanna put 2 different teamstyles, you can put two paste or something like that