I think the auditability is an important aspect and I like the low barriers that Python offers for people wanting to read it or contribute.
That being said, moving parts or everything to Rust is not out of the table, and would be beneficial for a mobile app for example. Meanwhile we're using Python with type hints analyzed statically (mypy) and on runtime (pydantic models). But there are more important things to tackle first.
What brings us to integrations like Raspiblitz and Jam. Both are being worked on at the moment and pretty functional! You can track the status at
https://github.com/joinmarket-webui/jam/pull/1166 and
https://github.com/raspiblitz/raspiblitz/pull/5240