In the trailer we here Doomfist say “Normal punch” and then later at the end of the video “Now that was a serious punch”
Definitely a missed opportunity to have these be replacement voice lines for rocket punch, with him saying “Normal punch” for the unempowered rocket punch, and “Serious punch” while empowered- or at a minimum, to have either of these be useable voice lines
Especially since these lines were actually recorded.