What troubles have you had with debugging row level security? It has worked very well for me, I've not had issues debugging it. And what do you mean with making a query type safe? Type safety is built in to GraphQL, if you send in the wrong datatype for an input the query will be rejected without even hitting the database.

Unit testing row-level security policies is far from the hardest thing to test/debug. Not sure what this guy is talking about.