To the OP.......There are few if any airlines in the world that are 100% compliant with a manufacturers SOPs. Many (perhaps most) will say they comply fully but when you deep dive you soon find that there are numerous reasons why an airline could differ in their application or interpretation of standard calls or SOPs. Sometimes its even required by a regulator.
As an aside you are probably watching some old video clips. The PF will only call the FMA in our latest standard calls SOPs. A silent check/scan of the FMS aircraft position on the ND is made but no verbal call. We follow our Ops Manuals Part A and B for standard callouts and operational aspects of how to fly the aeroplane in accordance with company policy. We would rarely have a need to go into the FCOMs for a reference to an SOP but I am aware that there are some airlines who have effectively copied and pasted the FCOMs into their Ops manuals.