Btw, in Macbeth some reactions are not really realistic. Eg the response of Duncan's son to the announcement of his father's (the King's) death is also quite underwhelming
"DONALBAIN What is amiss?
MACBETH You are, and do not know't:
The spring, the head, the fountain of your blood
Is stopp'd; the very source of it is stopp'd.
MACDUFF Your royal father 's murder'd.
MALCOLM O, by whom?
LENNOX Those of his chamber, as it seem'd, had done 't:
Their hands and faces were an badged with blood;
So were their daggers, which unwiped we found
Upon their pillows:
They stared, and were distracted; no man's life
Was to be trusted with them.
MACBETH O, yet I do repent me of my fury,
That I did kill them.
MACDUFF Wherefore did you so?"