I think motability is the only organisation I am associated with where I don’t need to sign in to access their website.
You do need to sign if if you want to view confidential information, such as your account. The rest of the info is all public access and so it should be (for reasons explained earlier). You don’t have to sign in to view car manufacturers websites if you want to research different cars, so why should you if you are considering joining the Motability scheme? Isn’t this an argument for arguments sake (yet again)?