I used to be a certified Adobe Expert for Photoshop, Illustrator, InDesign, and some others years and years ago when the training institute where I worked as a freelancer decided all their instructors had to be certified.
Simply stated: these type of certifications are more often than not a cash cow for the software companies in question. Knowing which buttons to push is standard fare in these exams, but actual deep knowledge and skills how to approach real-world projects, creativity, and solutions are generally completely missing or only tangentially touched upon. But I suppose that is the point.
I see no reason for this type of software certification but for bragging rights. A typical employer would only be interested in an applicant's portfolio - the quality of the work. Who cares about certification? A waste of money and time, in my experience and opinion. Besides, software can be learned in a few weeks, while modeling, animation, VFX, texturing, composition, etcetera, technical rigging, and so on, require much more time to learn.
I apologize for the negative tone - based on my experience with "software certifications".