Not at all. All of the coaching content is available for you in your member's area, and you can meet and connect with fellow members on the Zoom calls and/or in a group chat.
However, I would recommend you have Facebook to access the private member's group. It's just a great, positive place to go to share your wins, ask questions and really get to know your sisters. Right now, it's also the best option to have a free, easily accessible private community for all members to connect.
If you're not a Facebook user, it's well worth creating a basic, private profile with just your first name and picture so you can get involved without having to 'be on' Facebook.
If you're already a Facebook user, I recommend culling your feed so that you only follow and feel part of groups such as the Sisterhood or other communities/people that make your experience positive and inspiring.