Is my contractor guy doing a botch up job with repointing
That is terrible and unacceptable. 

The mortar has been mixed with too much water causing it to dry (cure) and crack. When mixed, it should be the consistency of thick paste. There should be no water oozing out when mixed and sitting on the board before “placed”.

Cracking will allow moisture infiltration. It’s useless. Remove it and re-do. Do not just reapply another drier coat over the cracks. (Type S is acceptable for above grade use.)