The Pokémon in DPP overthrew the OU Council and voted to ban Jirachi and Latias. How would this change the tier?

What would happen if the DPP OU Council decided to grow some backbone and ban the root of many problems within the tier? I’m of course referring to Jirachi, which has been surging in controversy recently due to its paraflinching cheese and degenerate strategies. By proxy, since most teams would end up losing their best responses to Latias, it would get banned as well so it doesn’t completely dominate the tier.

How would the tier be impacted by these bans? Would it be healthy for the tier overall? Which Pokémon will rise and fall in response to such an action?

What would happen if the DPP OU Council decided to grow some backbone and ban the root of many problems within the tier? I’m of course referring to Jirachi, which has been surging in controversy recently due to its paraflinching cheese and degenerate strategies. By proxy, since most teams would end up losing their best responses to Latias, it would get banned as well so it doesn’t completely dominate the tier.

How would the tier be impacted by these bans? Would it be healthy for the tier overall? Which Pokémon will rise and fall in response to such an action?