From what we gathered on the kitchen side he fired the most infrequent committers. Which statistically speaking would not affect the institutional knowledge much.
Sure there had so be some frequent but low impact committers. But implying that people with lowest amount of code contribution must have more impact is ridiculous.
I mean, a staff engineer who stopped committing couple years ago? Yeah could be burnout, or could be some major contribution that's not in the stats. OTOH an IC on their second year in position who hadn't pushed a single line? Nah the institutional knowledge is safe without.
This take is, quite bluntly, stupid and clueless. Do you think each commit reflects the volume of institutional knowledge of any individual? Unbelievable.