Hello Dr. Raj,
Pl clarify/confirm YOUR locus-standi reg this matter/issue. Are YOU the person involved?
Frankly, I fail to understand your logic. Forgive me for being absolutely blunt.
It's like the current set of politicians saying: I did "this & that & that, etc, etc ...." for the country--so the Parliament/Government/People should CONDONE my swindling the country, whatever be the amounts involved.
Like Dinesh, Kumar & Raj Kumar mentioned: there's NOTHING called a 'small' or a 'big' mistake. In the given set of Rules pertaining to any situation, the rules have to be adhered to. Here I presume that all the employees taking the Test have clarity that whatever was done is 'not permitted' [the reason for my presumption is that otherwise, this WOULD have been the point of argument/discussion].
Looking at the situation you mentioned from purely a psychology perspective, I am sure you know that the Quote 'little drops of water make a mighty ocean' also works in the negative direction when applied to human nature. Every...repeat....Every act of wrong-doing/corruption we see today originated from some small act being condoned earlier on ['why or how' isn't the issue NOR does it matter at all]. Hope you get the point.
Suggest guide the employees concerned to LEARN from this mistake & move forward in life.
All the Best.
Rgds,
TS