I agree with your concerns but also think that a new viable browser engine will be such a benefit to the health of the open web that I'm willing to overlook such irregularities, at least for now. sqlite doesn't accept contributions either and it's done well for itself, and if Ladybird ends up going sour there's always the possibility of a fork. This is similar to my stance towards Firefox: despite the actions of Mozilla Corp, having at least one non-Blink engine is too important, and for friends and family that I care about, working ad-blockers are essential so there's no practical alternative.