That is not fully tokenomics. That is simply lowering the supply with the hope that the lower supply will somehow meet the demand and will increase the value of the Stellar token. Tokenomics is creating a consistent and sustainable environment for the investors to continue supporting Stellar and its products. A sound tokenomics will attract more investors. A burning is a just a one-time act that does not guarantee the continuous demand for XLM. It will cause a pump though if it involves a large amount such as what Stellar is burning right now.