Yes good post elfreako but we have to consider a few things before we can make a reply
Always ask why.
Except for bodybuilding purposes (physique competition) serious attempts to build or maintain perfect muscular proportions are neither necessary nor desirable, a large part of time and effort expended by bodybuilders is directed at the attainment of ideal proportion.
But trainees involved in any active form of sport should confine their efforts entirely to the development of the muscles that will contribute directly to the performance of their chosen sport and let the resulting muscular proportions be what they may I reckon.
Split routines? It's a word, we know you cannot split body parts ,the body works as one, a split routine is intended to place an emphasis on a particular part.
Should a beginner use this?
That will depend on their muscular proportions