If firing 40 people every quarter is normal for you then your company culture is fucked.

Turnover in sales is often 25-40% across industries, some are voluntary, but just as many aren't. If about half of all departures are firings and Prince's numbers are accurate, then Cloudflare is significantly below the industry average.

Though, he does say "go to market org" and not "salespeople", so it might include other professions as well.