As of November 18, 2020, you're now able to link your Google account to your MyWikis Client Panel. (Please note: this is different from logging in with Google to your wiki, which is an entirely different feature.)
To use it, make sure you have an account first. Then, press the log in with Google button on the right side of the login page. If it's your first time logging in with Google, you'll be asked to link your Google account with your MyWikis Client Panel account by entering your MyWikis Client Panel email and password. Once you've done that, your Google account will be successfully linked with your MyWikis Client Panel account, and you won't need to log in with your password anymore! Simply choose the log in with Google option in the future for easy 1 click login.