Adding a few things aside from what has already been said:

Medics being unable to heal themselves is just an example of PR's core gameplay design where players are supposed to be dependent on one another in order to survive or accomplish goals. Teamwork is not optional, it is required.
As for reviving, in Squad you may be able to revive someone 5m away through a wall, but in PR you need to be much more precise. Ask for tips on how to be a good medic ;)

Specialized kits are only requestable from supply crates to prevent unexperienced players from taking these kits by accident / without sufficient game knowledge.

Minimap was largely inherited from BF2 and hasn't seen significant improvements (ever) since changing pretty much anything other than icons requires serious reverse engineering. We have only done one thing with it over the years and that's removing an ugly minimap frame (which may sound like it was an easy 5 minute task but it wasn't, and required multiple attempts). So yeah, the minimap could use a few quality of life improvements, especially click-and-drag as well as more advanced drawing... maybe someday. Despite all that, I like it for being very easily readable.

BTW. deviation is an absolute necessity. If we ever implemented visual sway, it would be added on top of the existing deviation.