"If Evans is that much of an imbecile, he should be suspended before he takes the field," he said.
The expletive is likely to come under scrutiny from the NRL, who have previously cracked down on players with swear words or controversial messages on their wrist strapping.
In 2014, Evans' current Warriors teammate Matt Lodge was suspended for two matches for writing the word "c**t" on his wrist tape during an under-20s State of Origin game.
And in 2016, Andrew Fifita was fined $20,000 for sporting a message of support for convicted one-punch killer Kieran Loveridge on his wrist.
Any suspension for Evans would be dire for the Warriors, who lost Roger Tuivasa-Sheck (concussion), Tohu Harris (ACL), Rocco Berry (hamstring) and Wayde Egan (shoulder) during the loss to the Panthers.