100% agree. It's unbelievable what a PITA it is dealing with pip or npm compared to Maven even 10 years ago. The descriptors could get convoluted but you could also edit them in an IDE that knew the expected tokens to make things happen.
Maven files have a simple conventional structure and a defined schema. Once you learn it, it's a breeze to work with. It's not like you need to write hundreds of lines of SOAP or XLST — which is actually why people started to dislike XML, and not because XML inherently bad.
Edit: I'd also take XML over TOML any day, especially when it comes to nested objects and arrays.