"very engineering driven culture. 'product managers are essentially useless here.' is a quote from an engineer. engineers can modify specs mid-process, re-order work projects, and inject new feature ideas anytime. during monthly cross-team meetings, the engineers are the ones who present progress reports. product marketing and product management attend these meetings, but if they are particularly outspoken, there is actually feedback to the leadership that 'product spoke too much at the last meeting.' they really want engineers to publicly own products and be the main point of contact for the things they built."

This sounds like Mark Zuckerberg living his 'revenge of the nerds' dream in his Facebook nirvana! It certainly doesn't sound like good management practice!