Of course tanks are becoming more brawl-like and more based around really getting in there and dealing damage. This is especially the case for main tanks like Reinhardt and Orisa, so they’re gonna be more damage-like.
But you argued that off-tanks were becoming even MORE damage-based which isn’t the case. They’re having their defensive capabilities increased to allow them to compete with a Reinhardt, for example, who has great defensive capabilities.
Just read through this statement, it tells you how off-tanks and main-tanks are being balanced in a way that allows them to attack aggressively yet still defend their team when they need to.