DescendNow
I find your statements paradoxical. You say you are new to Airbus and you make a statement putting A320 on the mat. The examples you gave have a greater element of mishandling due to insufficient knowledge than any real systemic fault. I can understand you asking clarifications at this stage but the eureka like nature of statement and the title of your post appears a bit presumptuous. To put it simply what you experienced and the way you say it happened is not possible. There is definitely an omission or commission that is not noticed by you.