You seem to think the assumption "all companies die" means you can simplify away their journey, but it matters if they get there faster or slower (at least to society, if not the decision-makers to maximize their personal profit while hoping to not being the ones left holding the bag).
That's what they say, but I don't think it's true (at the high end, at least). For instance: if Boeing dies, the market will not replace it. It'll be an Airbus monopoly for large jets, and maybe the the communists will eventually build a competitor (Comac). IIRC, it's too expesnive for Embraer to make the jump into that market.