…pplets or Flash to run a black box in your page while the rest of your page is rendered separately. The benefit of this method of integrating React and D3 is that you can use all the same kind of code you see in all the core D3 examples. The main difficulty is that you need to create functions in various React lifecycle events to make sure your viz updates.
A company hires specialized data scientists (Q3/Q4 resources) who expect to do at least some science, but all the business really needs, and has the data or appetite for, are simple heuristics or manual processes . A bunch of frustrated data scientists is the result.