I checked with our web department on this. The login is a security feature of the online store that cannot be disabled for any particular type of transaction. We are working towards incorporating a single sign on for membership renewal and access to the website, but there are several steps that must take place before that can happen. The single sign-on won't happen until sometime next year at the earliest.
If you prefer not to create a login for the online store, you can always renew by calling our toll free number 888-822-6273 (888 U CAN BREw) 8AM-5PM Mountain time.
Thanks for your membership!