Todd Spangler NY Digital EditorMasterClass, the celebrity-driven online learning subscription service with big-name Hollywood talent partners, has cut its headcount by 20%. CEO David Rogier cited “the worsening macroeconomic environment” for the cutbacks.The layoffs by San Francisco-based MasterClass, which previously had about 600 employees, affected all the company’s teams.“Today is a sad day @masterclass,” Rogier tweeted Wednesday.