Quality over quantity, but honestly, we can never stopped the increase of number of exchanges in crypto.
As the number of investors increases, that calls for an increase of exchanges also, capitalist seems potential in the market, so they will try to operate.
They will race to make or plan a perfect exchange and security that can be trusted. It's true that the more investors the exchange will continue to grow in the crypto world.
That will really happen in the future, in fact it is been started already and we can expect strong competition among them.
Thus, any of them should provide a good services in orders to gain more respect and attract investors cause that's the only tool in order to win. Otherwise, it never them a chances to grow instead bringing them into down.