Couldn't they have just moved their python to Cython / Pyrex? Or changed their arch and kept the tech stack the same? I wonder how much time and team hours wer

Couldn't they have just moved their python to Cython / Pyrex? Or changed their arch and kept the tech stack the same? I wonder how much time and team hours were spent learning the new framework and it's caveats vs if they'd just spent a little time optimizing their existing stack. All too often common with non-perf folks making sweeping changes without rigorously measuring along the way. I guess it makes for good headlines.