> One does not exclude the other. https://en.wikipedia.org/wiki/False_dilemma https://en.wikipedia.org/wiki/False_dilemma You're right that this doesn't follow

> One does not exclude the other. https://en.wikipedia.org/wiki/False_dilemma https://en.wikipedia.org/wiki/False_dilemma You're right that this doesn't follow devoid of context, but luckily we're talking about a specific entity and a specific situation. The assumption that motivates this assumption is the idea that Mozilla has finite resources, not just in the literal sense, but in the sense of having to make significant trade-offs in what to focus on. This seems like a fairly reasonable assumption to make given that they're often so far behind on things that are fairly widely considered positive, like one-process-per-tab. You may disagree with that assumption, but at least address it instead of being wearisome and linking to a Wikipedia logical fallacy page.