Balancing issue healers/tanks

As i see it currently considering mobility damage healing shielding. Tanks should have a larger health pool while healing should be nerfed. And i mean not just by a little. You could double or triple tank health and half the healing. This would make the game way more fun and we also wouldnt get stalemates where both teams tickle each other from distance. Also people expecting certain dps not to be able to down a healer becouse its not a certain character is bullshit.

Large health pools are good but high heals sustaining infinitely unless bursted a specific way is bad design. Lets have a non biased objective discussion about this.