Totally Agree with you.
Even when we travelled by KOAA-NangalDam few days back, it often hit 112kmph after DKAE till ASN and the coach was terribly shaking and trembling and the hitting of shock absorbers at times the base of the coach.
I have taken those screenshots when our train hit 110+ and my friends who have travelled with me will be able to confirm the shaking experience at 110-114kmph even.