Yes, it would be great for a family pricing plan.
We only have one trainer, so very hard to use both accounts (one for my wife and one for me) at the same time.
I also know a lot of people in the office where I work, talk about the same subject. One of the benefits of colleagues and friends, we get each other running a subscription and race together.
Where the price level sits at the moment, it makes most of us cancel during the warmer 6 months of the year.
I would be up for a years subscription of a cheaper or family price plan.