Parody porn - a step too far?

TV and film parodies are one thing but parodying the Royal Family in general, 'William and Kate's wedding' in particular; isn't that a step too far? Judge for yourself at the definitely Not Safe For Work Strictly Anywhere - 'A Royal Romp'. Here's the blurb:

'Movie Duration: 0h:44m

Royally Fucked! Raise your glasses please for this royal occasion where we witness the beautiful union of Willyam and Kate. Catch a glimpse of the passion following the announcement of the royal engagement. See the glorious wedding day with Queenie and Prince Charles. Watch out for Chelsea as she finds more than a cocktail sausage under the table. The country rejoices and to top it off the two bothers play a game of swapsies and enjoy a real royal gangbang! Now this is a monarchy to be proud of!'

The cast? Only two 'actors' get pre-billing: Megan Coxxx and Michelle Moist
We are not amused? Aroused?