Re: Wider problem
I'm inclined to agree with you regarding Junior researchers - Those are literally schoolboy errors. The "deficiencies in informed consent and Ethics Review Committee approval" did it for me - You'd be unlikely to negotiate that minefield correctly the first time without some experienced guidance.
The falsification of data though - that's naughty no matter which way you look at it. No researcher goes down that road by accident.
If I was the client I'd definitely be wanting my money back.