Master Propio in Spanish Teaching 19 Euro

[Kab]

Yup an only the CLEA department is responsible of giving value to the "titulo". No RVOE, so is a "titulo propio"with the value associate to it. They are great to learn and show you spent time improving your knowledge but still not recognized in Mexico as academic or by the Mexican government which requires RVOE.
At least in Spain since 2021 (don't remember the month) the Master propios (which need minimum 60 credits) given in conjunction with a university have a specific legal frame as "masters de formacion permanente". Which means you have a Bachelor (to be admitted, in theory) or equivalent and keep studying at university level with a professional end (developing a profession or knowledge with use in a profession).
Maybe Mexico goes the same route in the future. They are developing a stronger education rules and standards in the last two decades, so they have a bright future ahead of them. Still... today, I will put my hopes in the place that give me more securities.
If you want to go the Mexico route I would check a master degree with RVOE. They should be recognized as Regionally Accredited with no problem.