There will be global servers if there were all in one location, i.e. no regional data centers.
It's just somewhat laggy to some groups of people.

Guess what, your whole linkshell has the option to pick the same server
Someone is still sucking up the lagginess. No way around it.

This makes me long for the day this planet will have lag-free communications across the entire surface. Preferably within my life-time.