1. Typescript has to work with Javascript, which inherently makes things difficult and you have to choose between correctness or ergonomics. TS went for the latter, which probably was a good decision, otherwise no one would use it now.
2. While I have a lot of respect for the creators of TS, the language is not very consistent and uses a lot of "special cases" or "special features" to solve specific problems. But it also means that it becomes hard to ensure that all these features work together well and in the way that users expect. Other languages lack features that TS offer, but they feel more "consistent" or reliable.
1. Typescript has to work with Javascript, which inherently makes things difficult and you have to choose between correctness or ergonomics. TS went for the latter, which probably was a good decision, otherwise no one would use it now.
2. While I have a lot of respect for the creators of TS, the language is not very consistent and uses a lot of "special cases" or "special features" to solve specific problems. But it also means that it becomes hard to ensure that all these features work together well and in the way that users expect. Other languages lack features that TS offer, but they feel more "consistent" or reliable.