The more rules that gets removed the less flavour the game will have. It's not just advantages that makes roleplaying games fun, it's also the disadvantages. It's about choices with consequences. Soon, races will have no meaning other than different skins..
Changing the way ability scores are assigned is not removing rules - it's removing a limitation. The ability to make meaningful choices hinges on having a set of options with balanced advantages and disadvantages. There is literally zero advantage to taking a race that doesn't let you start with at least a 16 in your primary ability over one that does. Removing this limitation will increase the amount of meaningful choices to be made, not decrease it. I say that with confidence because there's other roleplaying systems out there that are crystal clear proof of it.
