I work for a huge bank: The actual terrifying thing is that these financial models semi-technical management are creating in Excel are actually relied upon in the first place.
If you convert bullshit from Excel to Python it's still bullshit. There's a reason why Claude can one-shot it and no one questions the result :D
The Python bullshit at least can be unit tested bit by bit and easily improved.
Nobody will see that on sheet 27 cell FG456 is actually a static number that Brian typoed in there in 2019 and not a formula.