a new platform, it would be very irrelevant if it was just launched. this will not guarantee anything. Wouldn't it be safer to run an exchange on a trusted exchange, because new exchanges are still under development, making us like guinea pigs.
For security it is better to run an exchange on an exchange that is already running and working well than a new exchange platform, maybe people who invest in the exchange want a big profit from buying their coins during the pre-sale