Nobody gets forced to port kernel stuff to rust. Also the rust compiler takes a lot of burden from maintainers by the safety it enforces.
The whole conflict ist not a technical one, it is entirely human. Some long-term kernel developers don’t like people turning up and replacing the code they wrote. Instead of being proud that the concepts they built get to be elevated in a superior implementation, they throw tantrum and sabotage.
Could you name some then. I don’t really see any in the article.