We kinda did. Tank busters are indeed designed to counter tanks. So when releasing new supports/tanks they seemed to try to give them more tools to prevent this.
Brig was designed as an anti-flank/dive support because supports were so weak to this and looked what happened.
Sigma was given a butt load of tools so he couldn’t be so easily exploited and look what happened.
Instead of overloading these new tanks/supports they shoulda just made more tanks and more dps choices that were specialized.
Double barrier era had some of the best tank balance outside the very top ranks. They should just experiment with a team wide barrier limit. Essentially using more then one barrier tank lowers the tanks barrier down to the limit.
So you can run Orisa/Sigma but your going to have a hell of a time with much weaker barriers.