I feel ike #5 is why many people like GraphQL, and #1 - #4 is why many hate it.
It becomes much easier to understand what data exists and build tools on top of it's schema. But the extra cludge it adds to optimise the specific case of returning less data in a field is often counter productive.
It becomes much easier to understand what data exists and build tools on top of it's schema. But the extra cludge it adds to optimise the specific case of returning less data in a field is often counter productive.