RG is the most boring class maybe even pointless.

[DR.]

you can still make up for that small difference with skill.

I completely agree with this however I would argue if you're putting more skill into the game and have the equipment to support you (Its very possible with worse gear it puts Rg as a more balanced classes vs the other 2)

Rg in Its current state doesn't reward you as much as the other 2 infantry heroes. Zwei and Leg skill cap is higher.

All shields work the same its just a matter of how long they last so the inherent bonus of picking Rg can be completely negated by being active/switching shields/repairing shields. A Shield of Kings has Inherently the same "power" as Phoenix Shield the only benefit is lasting a bit longer so if you dont need the longer part whats the point?

Genuine question when was the last time you saw a Shield of Kings break on an active Rg with a good team?