Galdian, Boeing specifically recommends against using A/T ARM during manual approach and landing. Other phases of flight according to normal automation SOPs. Therefore, A/T ARM mode is SOP for takeoff (prior to TOGA and after THR HOLD), and idle thrust descent with A/P engaged.
Yes, some airlines include it in their SOP's, in specific defiance of Boeing's recommendations, because they think they know better. That's up to them. Other airlines fly in accordance with the manufacturer's recommendations, including mine which is one of the oldest airlines in the world.
The only near-smoking hole involving a normal go-around I've read about in recent times was in your (and my) country and it was caused by an operator varying it's SOP's in specific defiance of Airbus's recommendations, because they thought they knew better.