"We determine what proportion of the surplus is reinvested into the co-op, what proportion is directed to socially beneficial projects outside of Loomio, and what proportion is distributed to co-op members. Being a member makes you eligible to receive the distribution, but does not mean any distribution will necessarily be made."
So you have all of the responsibilities of an owner, but you may or may not even get any distribution of the overall profits, if the company sells.
These decisions are also above the heads of the members. This means it's technically not 'worker-owned'.
"Members are the ultimate decision-makers for Loomio. While we often delegate decision-making, such as to diretors, coordinators, and leaders of work areas, all mandate traces back to the members."
Another important aspect to owning anything, is being able to make a decision. It seems most decisions are delegated to a directory/coordinator, which isn't much different than having a manager/boss above you.
This isn't much different than a standard corporate setup in a startup, with the hopes that your small percentage of the company will pay out.
I look at actions rather than words and although you call it 'worker owned', the details in your handbook don't really portray this.