Well, we also still use wheels despite them being invented thousands of years ago. We have added tons of improvements on top though, just as transformers have. The fact that wheels perform poorly in mud doesn’t mean you throw out the concept of wheels. You add treads to grip the ground better.

If you check the DeepSeek OCR paper it shows text based tokenization may be suboptimal. Also all of the MoE stuff, reasoning, and RLHF. The 2017 paper is pretty primitive compared to what we have now.