Stuff always leaks. That's a silly reason to ask for the testing server early, and just encourages players to leak information even more next time.
Secondly, testing server only opens once a stable build has been made. When developers and art designers are still mucking around with balance, rebuilding the game frequently, that's hardly a good time to release a testing server (do you really want your runs being interrupted every 5 minutes because a developer wanted to tweak a single damage value? And even if you say "I don't mind", you're not really helping by cramping the server when they're trying to reboot)
Stuff always leaks. That's a silly reason to ask for the testing server early, and just encourages players to leak information even more next time.
Secondly, testing server only opens once a stable build has been made. When developers and art designers are still mucking around with balance, rebuilding the game frequently, that's hardly a good time to release a testing server (do you really want your runs being interrupted every 5 minutes because a developer wanted to tweak a single damage value? And even if you say "I don't mind", you're not really helping by cramping the server when they're trying to reboot)