The Canadian club’s application to re-enter the league in 2021 was rejected by the Super League board on Monday after seven of the 11 clubs voted it down.
The Rugby Football League wanted to give the Wolfpack another chance but had only one vote which was effectively cancelled out by that of the Super League’s executive.
Campbell, whose side lost to Toronto in the Championship play-off promotion decider last October, says the decision represents a missed opportunity.
“Unfortunately, this outcome is the product of a self-interested league and a toothless governing body which is powered by the clubs within it,” Campbell said.
“I find it disturbing that the sport has found itself in a position where the the sport’s governing body has the same voting power as just one Super League club.
“How can the game grow with this unjustifiable system of clubs having the power to determine the other clubs’ futures and the format of our elite competition?”
The RFL and Super League have been contacted by the PA news agency for a comment.
The Super League board was re-convening on Tuesday to consider whether to stick with 11 clubs in 2021 or seek a new 12th team and Campbell fears club representatives will choose the first option in order to secure a larger share of central distribution.
“The game needs to retain its integrity and ensure a 12-team Super League will start in 2021,” Campbell added.
“If the clubs vote for an 11-team competition, this will be another nail in the rugby league coffin, which will result in more and more supporters walking away from the game in a year we should all be looking forward to, especially with the UK hosting the upcoming World Cup.
“It seems that a majority of the current 11 Super League sides’ primary focus lies with safeguarding their own central distribution. If this is their priority, the game is at a very low point.
“We hope that the Super League sides, alongside the RFL, come up with the correct decision and show some leadership, by ensuring a 12th team competes in the 2021 Super League, whoever that may be.
“Promotion to Super League should be decided on the pitch and not in a boardroom. On that basis, Featherstone Rovers has earnt the right to be the 12th team in the 2021 Super League season.”
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