Early access has nothing to do with his criticisms. His problems are about what is embedded into DnD 5e itself. I can only say sorry man, WoTC sold out it's long time fans for mainstream appeal
Some of them*. Long time fan, dont feel they sold out.
What is the problem you are solving? Does your proposed change solve the problem? Is your change feasible? What else will be affected by your change? Will your change impact revenue? Does your change align with the goals and strategies of the organizations (Larian, WotC)?