Well I rest my forearm on the table and I still feel the strain in the muscle as it pushes down on to the table. As I use force to press keys it starts to strain even more. That's why I think it's because it's too tall but could be my bad, its just interesting because I had no issues with other boards as I said in the OP.

The Redragon Kumara with Cherry keycaps were not causing any strain, or the g613 or the K120 or the Keychron k4v1. Only this board does this.