Adapt and overcome, if teams or players cant handle a new agent every 2-3 months, its not the game for them. A fast evolving meta is entertaining and lowers the chances of a meta lasting forever and getting stale.
Astra will almost certainly be getting a nerf once masters 2 is over, they just don't want to change the meta so close to the biggest tournament of the game. Personally for me it would be getting rid of her vulnerability on the sucks, make them a touch easier to get out of, and lower her from 5 stars a round to 4. if we keep the stars the same, raise the cooldown periods of her utility.