Well if no launch provider gets credit for launching Mars missions unless they're also supplying the payload/propulsion this whole argument is moot (just leaves

Well if no launch provider gets credit for launching Mars missions unless they're also supplying the payload/propulsion this whole argument is moot (just leaves SpaceX behind Berkeley/Rocketlab and ISRO rather than Blue Origin and ISRO in the Mars race...) If we're doing analogies to holidays, the Starman Tesla Roadster definitely hasn't proven its worth for visiting London, even though it's gone beyond it (and SpaceX could have made it hit London if they'd really wanted to, just ask Werner von Braun :-) Quibbling about whether parties involved in conveying tourists to actually visit London receive undue credit for their segment of the journey, or whether the London Underground is more important than Gatwick flights which don't even reach City boundaries seems like pointless pedantry on the other hand, particularly if deployed in defence of the claim that flying away from London at escape velocity counts as a London visit.