As a Mutualist, I firmly disagree. Coöps are essentially a democratic alternative to top-down coercive management styles or forms of ownership. It is a mutualist system that is antithetical to competition.

Take a renter's coöp for example. Essentially everyone owns their building and they aren't competing with other buildings or have shareholders would expect a return on investment.

With coöps you can actually respect locality. Large auth-socialist systems will often have with people competing interests who have undo control over local systems. That isn't to say broader standards shouldn't exist, but that they should be done thru voluntary industry wide syndication.