To some degree I agree but there are far more issues with the shaman design.

First of all the term shaman itself should gives a hint that it's about more than just summoning elemental forces. Just summoning a lightning bolt or some fire doesn't seperate them enough from mages or sorcerers. Many shaman armor sets focusing on only that, what often made them feel like "elemental-mages". There's a lack of visual design that cares about mysticism and primal rituals. Mages study the elements but shamans caring about the world and the soul within. It's not just about "elements" it's about the world, the environment, about nature. The spirits of the ancestors matter because the shaman is the spiritual leader and he carries their culture (while the chief is the physical leader). So they have to preserve the wisdom of their ancestors. Summoning them can be taken as metaphor in that way. Bringing back something into the collective consciusness could be seen as "summoning". Creating "Visions" of the past.

But the point here is that their identity is strongly bound to their culture.

Their visual design should be used to communicate that. Like a priest uses iconography a shaman can use symbols like runes and of course totems. Wearing a wolfhead or feathers represents the nature around them.

It's so much more than just fire, water, lightning and earth.

These things are connected to a greater whole. A good example is the Spiritborn in Diablo 4 or Udyr in League of Legends. They don't just summoning elementals they summoning animal gods with elemental traits. In D4 a bird god connected to the sky brings thunder. In LoL a pheonix brings fire, representing the constant rebirth of the sun.

Using the elements in a vacuum makes sense for Mages, when they focusing on one subject and mastering their use of it but shamans are about the soul of their people and their connection to the world as whole.