Now, how long before someone rolls out some sort of 10M context hybrid attention active context management monstrosity and ruins this guy's "can't"? Start the clock.
My opinion of claims like "LLMs need memory to manage codebases" has also hit the dumpster bin a while ago.
Why would knowing how to make a maintainable change to a codebase require any more "memory" than knowing how to play an optimal chess move? The codebase is the memory. A sufficiently capable LLM can ingest it, figure out what changes to make, and make them.