Another recent controversy was a Rawalpindi pitch that produced a bore-draw and was only rated as below average, rather than poor. I also vaguely recall an MCG one from an Ashes series, maybe when Alisitair Cook got a big double hundred, don't know of they had the current pitch rating system then.
11 Mar 2022
Rawalpindi Cricket Stadium given one demerit point for the surface produced for the lifeless opening Test between Pakistan and Australia... has officially been rated "below average" by the match referee and given a demerit point.
In all, 1,187 runs were scored for the loss of only 14 wickets.
and
03 Jan 2018. MCG on notice after ICC rates pitch 'poor'
News MCG on notice after ICC rates pitch 'poor' | cricket.com.au MCG on notice after ICC rates pitch 'poor' | cricket.com.au
Had the Test finished two days later, the nation’s most famous cricket ground would have been slapped with three demerit points as part of a new ‘name and shame’ system from the ICC that came into effect on Monday.
MCG pitch in spotlight after governing body hands famous venue a formal warning