Um, only entering that info in one place is “less work,” by definition. Pre-CA, applicants had to navigate separate forms and requirements for every school, filling in their family info, grades, test scores, demographic data, and course history anew each time, and to make matters worse, the forms would frequently vary slightly (or broadly!) in their requirements.
Make no mistake, the CA saves a ton of work (while enriching its shareholders & partner institutions and driving up applicant numbers/driving down acceptance rates).