Consensual BDSM is not illegal. Adults can do what they please to each other. What changed was the certification of sexual acts on film for the R18 certificate, meaning they can be sold in sex shops. It's not even illegal to film and distribute these internationally. But if you want to sell legally in the UK certain acts will not be permitted.
The car analogy would work if MS were forced to release the source code once their support ends. That's how an old car would be dealt with - parts from the manufacturer until they stop making them, meaning a third party can step in and make the parts if there is a demand for them. the 'open' nature of a car allows this to happen. An open-source OS also permits this. A closed-source OS is different.
I guess the point is that if these organisms can survive the trip to Mars then we will never be certain if a discovered species on Mars came from us or developed independently. Genetic analysis could help but there still might be uncertainty. Now we know there is a non-zero chance of survival maybe we should stop worrying about contamination and get on with some terra-forming, so that the planet might be more hospitable by the time we are able to send people there.
Definitely the most important feature of the story and worth some discussion. The other side of the story, the whole lock someone up for an indeterminate amount of time with no idea of whether the broke a law or not part is just utterly played out.
The MFP in the office has booklet mode, which shrinks A4 sheets to 4 to a side, prints them in the right order, folds it and adds 2 staples. I'm in as long as I can keep this feature which is perfect for manuals, long dull reports and even source you want to study on the toilet. It's the mindless printing of email, finance batch import summaries for 'auditing purposes' and non-duplex wastage that needs to be addressed.