Of course there will still be a meta, but this ain’t it. The meta will constantly shift every week due to the most picked hero’s the previous week getting banned, forcing players to adapt to a new strategy, ultimately becoming the new meta, for that week.
Keeps things fresh and we don’t have to worry about there becoming a ban meta either.
Edit: Also when you think about it from a balancing stand point. the hero’s that can banned every other week is a great tell that they could use some nerfs. On the other side of the coin, the hero’s that never get picked, even when their counters are being banned is a great tell they could use some buffs.