Football fans booed Prince William at the FA Cup final at Wembley Stadium on Saturday, May 14. As some already saw it coming, activist and author Dr. Shola Mos-Shogbamimum said the Duke of Cambridge was "out of touch" for getting surprised by what happened.

Mos-Shogbamimum said Prince William was "not beyond reproach," so people who were either offended or touched by the booing should just "get over it." She added Kate Middleton's husband was the only one surprised that he got booed.

"Only #PrinceWilliam is surprised he got booed - like how out of touch is this guy? Laughable," she tweeted, per Express. "Those having a fit should get over it - Prince William is not beyond reproach."

Sure, there are fears that Prince Harry and Meghan Markle may get booed when they appear on the Buckingham Palace balcony during Queen Elizabeth's Platinum Jubilee celebrations. However, Mos-Shogbamimum said that royal aides might not worry about them after what happened at the FA Cup final.

In fact, the jeering already began after Prince William's attendance at the event was announced during the pre-match before the finals started. Several parts of the crowd also booed him when he moved down to the pitch to shake hands with Liverpool and Chelsea players.

They also booed when the national anthem began to play and the Christian hymn "Abide With Me." Anyhow, the future King remains mum about it.

He attended the match as the president of the FA and handed the FA Cup trophy to Liverpool after winning 6-5 on penalties. So, why did he get booed?

Metro noted it might have something to do with the Hillsborough disaster that saw 97 people killed in a fatal crash at the FA Cup semi-final in 1989. Royal family expert Omid Scobie suggested fans might have still felt there was an "establishment cover-up" over the catastrophe and wanted justice for it.

Though Prince William seemed not to mind the booing, the MPs condemned the jeering, calling it "dreadful." Commons speaker Sir Lindsay Hoyle told MailOnline he strongly opposed any fans who booed the prince.

He added the FA Cup final should be an event where people come together as one and no minority of fans should ruin it, calling it a "shameful behavior." He even mentioned that it was terrible, knowing Queen Elizabeth is about to celebrate her Platinum Jubilee next month.

Liberal Democrats leader Sir Ed Davey also chimed in, saying the fans who booed Prince William did not represent their clubs or the country.