Alternatively you can wait for NEM's official launch -- you'll be able to claim your NEM via your BTT account then.
I prefer this, yes. I just want to be sure my BTT account is properly registered.
But if you don't want the token and want to receive NEM on the official launch, you should not request NEMstake token. If you are not comfortable with Nxt asset exchange, you should not request NEMstake tokens.