Imagine logging in to your bank to check your historic balance, but only seeing the history of your transactions, not your balance? You could go through all transactions and calculate your balance at any point in time, but it’s hardly the best way to do it.
This is how most analyses on Ethereum data work now. Direct querying becomes nearly impossible due to the way storage is organized. This is because memory locations are actually hashes of variable slots and keys, which are incomprehensible to most.