in my opinion it's good if a lot of new exchanges emerge, because they will provide the best for their users, so we are all free to choose the best exchange, who provide good service, and the competing losers will surely die because they are left behind.
I agree with you, in other words I see it is a competition to be the best. The more new exchanges appear, the more facilities will be offered whether it's about security or convenience for users, which is definitely necessary because too many altscoin are popping up every day so I think they will have enough room for more new altcoins.