Funding to pay the core team (via revenue/grants/VC) requires a lot of leadership attention for any independent company that is developing an open-source project as its main activity. Yet more leadership attention goes into other administration (Taxes/hiring/legal/policies/etc.).

I don't have any direct context, though I have run an open-source business (Zulip) for the last decade wearing both the CEO and technical lead hats.

But my simulation is that the Bun leadership team might well be spending 2x as much of their time working on the technology than they reasonably could have as an independent venture-funded company, just because they don't have to do all that other stuff anymore. (There's of course probably a significant bias in that focus towards whatever Anthropic needs from Bun, only some of which other users may care about).

So I agree. Personally, I would not be concerned unless you see the tell-tale signs of the team being reassigned to other priorities at the buyer, which tends to be obvious, because, say, the GitHub project activity falls off a cliff.