Not really. Luffy , joyboy , Imu etc all have OP DFs.
Eos Luffy , Joyboy , Eos BB , Imu these 4 will be strongest characters in OP.
Strongest are those who have both broken haki and broken DF.
Old gen minus WB don't even have better on panel feats than waido.
Garp , rocks never used wifi haki as an offensive move either. They mainly used adv coc coating. Wifi haki is simply basic coc using to extreme. It's not an AP based attacks.