@Tamerlane @justforthelulz also note that wikipedia classifies pop punk as "a subgenre of punk rock" due to it combining characteristics of punk rock and power pop
the song itself does have emphasis on beats 2 and 4, technically classifying it as a "rock" beat drum backing (w/ the exception of the pre-chorus which has a halftime rock beat)
granted, the beat itself is probably called a "rock" beat due to it being a characteristic of early rock n roll