The "problem" is not figma. It is design in general. Everybody are coping each other which makes sense: You cannot copyright a design and also copying is much easier - and looks better - than designing from scratch.

However while designers will definitely think this as a "problem" which would kill creativity, I as an engineer think that it is the path that would happen later if not now. You can't really blame companies if they want to copy other successful designs - it works.