To me "revenue and MAUs have declined significantly" sounds like a reason they would want to reduce employee numbers, rather than a reason they wouldn't.
At least in a conventional business that uses revenue to pay wages.
Terminating employees without cause (i.e. due to employee’s poor performance) entitles the employer to unemployment benefits, causing the state to increase the business’s unemployment insurance premiums.
If an employee quits or is terminated due to not coming into work, then they are not eligible for unemployment benefits, and hence the business’s unemployment insurance premiums are unaffected.