This is my own experience: if the recruiters don't call me back, that means I fail. Calling them just makes me more stressful/sad.
Guess how many times anyone has called a recruiter and heard "Oh yes, you got the job - I've been waiting all week for you to call me about it"?
No - it just means the decision has been made, and you won't be hired.
Which is different from "you failed". It could just as easily be their failure to evaluate you properly.