"justification about" is a correct and usable phrase in written English.
You can use it when you need to give an explanation or justification for something. For example: "I believe my proposal passed the committee's review because of the detailed justification about its potential to drastically reduce costs."
"A shallow masterpiece," we might conclude, as Pauline Kael did (with less justification) about "Citizen Kane".
While they will complain, with some justification, about the goal West Brom deserved little better.
Manchester City can argue with some justification about the damage wrought on their players' psyche by the ambush on their bus en route to the ground.
And third, they represent a justification about the past and a promissory note about the future that fails to address what people are going through now.
Caitlin, his wife, complained about many things he did — Caitlin's volcanic temper, and the battles it provoked, is no small part of the Thomas legend — but she complained most loudly, and with most justification, about his visits to America.
Politicians could look up derivatives and credit default swaps in finance books, but found definitions that mixed baffling explanation with justification about how these things were supposed to facilitate investment and spread risk.
There is prickly self-justification about his record as mayor and point-scoring against other cities.
Weird was the reality TV aspect to designers doing collections for H & M and other companies, with all the self-justifications about democracy.
Justifications about being a leader are dubious – don't forget the lemming leading the pack over the hill is the first one to realize there is a long drop in front of him.
It's almost hilarious to hear justifications about technology anxiety.
Is this new act of violence unthinkable enough to move us from our same old arguments and same old justifications about guns?
