Job offer:

"There is no hierarchy within this company."

Bullshit.

Given a group of people, a hierarchy will emerge. In any company, a hierarchy will emerge. Even within a team a hierarchy will emerge.

Some people like to butt heads, some people like to go with the flow. It's how you deal with these personalities that matters.

You can try to be as fancy you want and declare your hierarchy to be as flat as a pancake, yet the reality is: there will be one.

Certain people will be trusted more by other people. Certain people will have more power in the decision making process.

Can we please stop deluding ourselves that this is not the case?

And that is not necessarily a bad thing. It only becomes bad if the company culture sucks. Instead of platitudes in regards to the assumed absence of hierarchy, I would be more interested to know how a company deals with its hierarchy.

How is feedback handled? How do people argue? How are decisions made, challenged and implemented?

That's what I would find much more interesting.