Hmm. Depends on your group. I've had a couple of groups these wouldn't work on...
One of my groups would have started yawning two minutes into this and decided to turn a healthy profit by converting the enterprise into an organ-legging shop...
...and with this one, they'd have walked away into the night, whistling a casual tune and then gone for a beer. "We ain't lookin for that sorta trouble - let some f***er else sort it out."
I'd have hated trying to Referee a group of easily-bored housecats like that. Me, I'd either give up on them and steer them towards a miniatures game because that's all they'd be good for, or I'd find some way of keeping their attention focused on the game, without having to go all "Damn, a Zhodani warfleet just Jumped into space in front of
and behind you! They're training their guns on your ship! What do you do?"
With the medical one:- The thing is, the characters
get to fly a ship. Most Traveller characters would jump at the chance to get to fly a ship, rather than be just passengers. And they don't have to worry about making up the month's mortgage payments, either.
Wherever they are, that's where the adventure will find them. While the medics are setting up their little mobile surgery and the patients are flocking in, the characters can be hitting the Downport bar looking for a job or a small cargo they can smuggle, for a price.
Or they might land on a world ruled by a caste system, and the ruling caste might resent the medics coming along and offering free treatment to the "untouchable" caste at the foot of the ladder. "Imagine! The children of entertainers and leather workers healthier than our own kids! Outrageous!" So the characters might end their adventure there fighting a running battle to keep their charges alive while outraged ruling caste-hired mercs chase them down all the way to the landing berth.
And as for the other thing, the auction that turns into Cloverfield, the answer is ridiculously easy. The Law suddenly seems to materialise out of the shadows, pin down the characters, and then give them one chance to live. Track down that beastie, and kill it, before it - or the Law - kills them. And then put explosive collars around their necks to make sure they stick to the plan.
(If nothing else, they could let the beastie swallow one or more of them and detonate the explosive inside its gullet to kill it. I'm just saying ...)
Boredom is no excuse for players. Nobody
forces them to come roleplaying.