Their point has validity on any scale though… I’m generally not a fan of “zero tolerance” in any context, but the context here is ostensibly an intentionally equalized playing field, meaning that a zero tolerance policy on any aspect is inherently fair… So there’s really no excuse for accepting environmental hazards…
The assertion that allowance of additives (any additives that pose environmental/spectator hazards) has no benefit other than “car go fast”, is a solid point.