Anton De Pasquale and Will Davison scored P5 finishes in Race 3 and Race 5 respectively.
The trophy-less weekend came at a bogey circuit for the Ford team, which hasn’t won at Sandown since 2010.
However, that didn’t stop detractors from criticising the team, prompting McLaughlin to defend the champion Dick Johnson Racing squad.
WATCH: DAVISON'S HAIRY MOMENT
It comes amid a campaign launched by Chaz Mostert, which aims to prevent online bullying.
"This was always a tough track for us and a strong one for [Triple Eight Race Engineering], always, since I joined the team,” wrote McLaughlin, who is slated to join the team for October's Repco Bathurst 1000.
"I’m sad reading some comments the last few days, I love our fans but the attack on the team/drivers is uncalled for.
"This has been a tough start for us as a squad, Bathurst, for two new drivers, learning a new car there is impossible, [you] need time, but Anton got a provisional pole at BATHURST, jeez give them some credit.