I think nowadays they are perfectly fine. Blazor Server had lots of disconnects because our customers typically don't have a stable Wi-Fi connection. Blazor WASM had next to no tooling. It was dotnet 5 or 6, so still very early on the WASM journey of dotnet, not much or no documentation and no AI to overcome initial hurdles.

tbh I sometimes miss React & TS too, for the frontend React is just straightforward, and TS is no bad language at all