[greenavocado]

The reason is because all new technology is a staffing and training problem management needs to solve. Someone has to maintain your thing after its built and be ready when you leave the organization. If React can solve the issue in a similar timeframe and level of effort and it is easy to source React developers then obviously your proposal will be rejected because React is simply far easier to deal with from a training and staffing perspective for what you are trying to do. You need more merits to warrant the introduction of new languages and frameworks.