90% of startups fail. OP is talking about annual 360 performance reviews. If your company may not exist next year, why would you do this? I say this as someone who has sold a startup.

OP is not talking about the "goals" I mentioned a startup having: revenue growth, customer growth, product development. These are things that startup leadership should keep track of and communicate regularly. OP's definition of "goals" are more akin to "take a Coursera course on machine learning". These are the "goals" that employees create for themselves with a manager when that company has gotten somewhat large. They are BS goals, that people who want career growth should be doing anyway.