Flamethrower visual improvements:
Good for new players but no impact on comp, anyone who's played the game for a bit knows to lead flamethrower and the general range of it
Afterburn improvments:
fixes annoyances, good, no major impact on comp
Airblast improvements:
p damn good, particularly "airblasting now factors in the momentum of the target and pyro"
ignoring new weps, pyro is still a walking ball of denial and stun with a not-very-fun-to-use primary. with new weps, they can only make pyro used more but don't change the problems with it