[Bug] RSham Oversized Totems talent not working

For the restoration sham and totemic hero talents, the size nor the radius of the surging totem is not increasing when having the hero talent Oversized Totems specialized into.
Changing the hero talent to Swift Recall does not change the size of the surging totem as well, then changing back to Oversized Totems, the size and radius remain the same.

Meanwhile, Healing Rain with farseer hero talents is bigger than the Surging Totem.

I am not sure if this is intended, but if I remember correctly, the size and radius of Surging Totem was bigger than the one in the picture.

I am unable to post the images of the size comparison.