@Elías *******
Sponsorship for workcation does not sound odd in case the employer is the sponsor. Why should an employee need to have financial reserves in case of trouble? The remote work only needs to generate income to live from, the 500K is just in case of problems. When an employer sees it as a good thing his employees work for some time at a different location, he can sonsor this.
But just like you said, it does not matter what we think, it is about what the embassy thinks.