I do find it frustrating when students, who fail, do not take responsibility.
I do believe it it normal to have a period of grief and denial. I mean it is a loss
and we all know about Kubler-Ross and blah blah blah.
But some people really stall in denial.
And some people have already made it a life-time habit to blame others.
I wouldn't worry about it.
You can give good solid criticism and you can send out a reality check, but you can't waste too much energy on others (if they don't want the help).
If asked, I'll give my opinion and offer my own personal experience as an example (BTDT with the failure thing) but that's all I can do.
Sometimes, a student's willingness to correct their mistakes says far far more than school performance, in and of itself.