Port isn’t even good in 3v3. It’s just okay. People which are bad at the game and can’t rush well think they’re OP.
Most good players in the top 500 are rushing at min5/6. You never have time to ff let alone get goons up as port.
The sad thing is even if a port does do a perfect ff their goons arn’t even strong until they get around 15 of them + 3 buffs. They’re certainly not statistically stronger than anything(other than horses, which lots of other things counter) until until age 4 when you can upgrade them to their second rank.