No it's not. What Overmars did was stupid and very unprofessional. However, Ajax completely overreacted in firing him. That was all down to a big scandal surrounding sexual herrassment at the The Voice of Holland show, which got huge media attention the weeks before. If the world wouldn't be in a woke-mob stranglehold he wouldn't have been fired.
We are now 6 months later and nothing came out that warrants him being fired. He was just a stupid man, that should have been suspended from work pending investigation. If no criminal investigations are opened, which hasn't been the case, he should have been back to work back at Ajax. As an Ajax fan I hope to see him back at Ajax in the future. He could start tomorrow for me.
Actions have consequences is one of the biggest knockdown arguements I've heard. You don't stick someone in jail for walking through a red light.