Bendtner has been banned for one competitive fixture and fined the striker €100,000 (£80,383) for exposing sponsored underwear in Denmark's European Championship defeat to Portugal last Wednesday.
Ferdinand wrote on Twitter: "Uefa are you for real??? £80,000 fine for Bendtner for underwear advertising.... all of the racism fines together don't even add up to that?!
"Uefa are not serious... Platini was a great player but him & his colleagues alienate themselves with exactly this type of rubbish. If racism made money for Uefa like advertising does do you think Uefa would take it as serious?? #priorities"