There are typed TLA formalisms[1], but they're not called TLA+. I don't know what it means to want TLA+ to be typed. It's like saying someone wants the untyped lambda calculus to be typed. I can understand someone who thinks Lamport was misguided in designing TLA+ as an untyped formalism, but so far it seems that he was right (for the reasons I detailed in my Reddit comment).

[1]: https://www.isa-afp.org/entries/TLA.html, https://drive.google.com/file/d/1rAn3N5hViv3xNe2E55lMzpFFym1...