Thanks for sharing your thoughts.
I don't disagree with your points. However, using React for making the UI portion of your game is still using React for game dev. The default would have been to just make your UI within the canvas itself.
Now in the post, I explained that considering option 1) Using React for the game rendering vs 2) Using React only for the UI, I went with 2) and explained why.
However, I want to thank you for explaining why React is unsuitable for rendering the game itself.