Conspiracy theories! Conspiracy theories everywhere!

Really, now...
You're worried for no good reason, ma'am. Think a bit about what is the purpose behind the alpha testing: Testing the game's server structure and connection. Having a sample size with various different ping responses is important for that, seeing if the person with 10ms ping and 10000ms ping are getting the same lag is part of the process (I was being hyperbolic with the times there, by the way)

Beta testing has a completely different reason to be. "Can the server handle 1000 people doing quests at the same time in the same place" is for alpha, "In what ways can players skip actions in this quest to cause it to break and become uncompletable" is for beta. Your geographical placement (in other words, your ping response) does not plays any role for beta.

It does for alpha, though.