#2 Undertaker calls Styles by his real name
At the start of the match when AJ Styles tried to wriggle away and get away from the grave following lofty blows delivered by The Undertaker, The Phenom called Styles to come back and said "where are you going AJ" repeatedly. He then, surprisingly, called out Styles using The Phenomenal One's real first name - Allen.
WWE rarely breaks kayfabe and sticks to the character's WWE name during shows, but Undertaker – like Styles did a few weeks ago, by addressing him as Mark Calaway – used Styles' real name during the match.
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During the entirety of this storyline, WWE has broken kayfabe plenty of times, by allowing Styles to call Undertaker using his real-life name, as well as bringing Undertaker's wife, Michelle McCool, into the storyline. And The Undertaker repaid the favor by calling Styles by his real-life name, which brought a sense of realness to this feud.
WWE did the same thing two years ago ahead of WrestleMania 34 when John Cena called out Mark Calaway for a match at The Show of Shows.