[1] https://www.johndcook.com/blog/2011/07/19/you-wanted-banana/
It's not that you can't do it, it's just that the entire ecosystem and excellent stdlib encourages you to develop your own code, and makes it very easy to refactor, catching most non-logical bugs at compile time if there are any.
It's not so much writing the code, that's the easy part, but reading and tweaking it later and not go hmm..
There something to smaller, simpler and btw, nobody is saying golang is currently a good fit for all kinds of projects, but the core ideas are easy for new developers and interesting for experienced ones.
Composing smaller components into a bigger system would be a great fit, and it could also be used for a monolith, though golang really shines most where code is segmented into clever little independent features. This may require some extra design and systems thinking.