Rek'Sai's playstyle doesn't fit her teaser trailer and theme

In the trailer, she's portrayed as a Sand Beast of Shurima. Later it is revealed in fact she is the Queen of the Xer'Sai, an ancient race from the Void. Despite her primal sounds, it is evident that she is highly intelligent, as shown by he usage of the sand and various burrowing techniques in order to stalk her prey.

But one thing.

In-game she is a tank. She just kinda initiates a fight and is a general annoyance. In-game she herself doesn't do much damage, she's more of a supporting character to the team, who sets up for the higher damage dealers to get their damage done. In the cinematic however, she shows purely damaging aspects, using the ground to maneuver around and trap her prey.

I don't understand how they go from Land Shark of Death reaper the Shuriman ruins to minor hindrance who just has a metric ass load of hp.

I miss damage Rek'Sai... I'm not saying to buff her damage, oh god no. But it's pretty unsatisfying to have the Queen of the Xer'Sai to be nothing more a minor annoyance who just sits in the middle of your team tanking.