That is false, I too despise dive, but think it foolish to simply embrace a clearly broken hero on the premise that it is a potential solution to dive.
To counter dive, all that is required is to facilitate surviving the impact and making it not worth the risk. What we ended up with is much worse, we ended up with a must pick hero that takes 5 minutes to master, and that includes the time it takes to remap your keys.
You also introduce chaos into the ranking system by artificially elevating people who cannot choose other characters and play at their expected level.
You create an environment in the game where legitimately people are packing up and going elsewhere as a direct result of the massive impact the introduction of a single hero has had on the game.
This is not the right way to fix dive comp, and it still needs fixing.