The more exchanges I think the better. So that new coins can have a great opportunity to enter on every exchange. With the Stock Exchange closed, of course, open opportunities for other exchanges to increase trading volume.
maybe more exchange will be better,, but look at the case above
why the exchange closed is because of low trading volume my friend
and if a lot of exchange born, wich mean a lot of volume on trading activity will be splited my friend
and some exchange will get more volume, but the other ones will get less volume