To me, it suggests that analogies aren't as useful as we'd like them to be. Either the analogy is perfect, in which case nothing is any simpler, or it's imperfect, in which case you're now distracted by the differences.
They're not totally without value but I find that it's generally better to avoid a analogies. Look for some other route to make the point.
Analogies are a simplification. The problem is not that they can’t capture the whole thing in detail. But that they just don’t stand up to any adversity (because that isn’t what they are for). They are only good for explaining things, not for arguing.
They rely on the recipient going along with the analogy and trying to make it work, not trying to find problems with it. If someone understands the concept well enough to needle the analogy, they probably have a better understanding than the analogy can provide anyway, so it is fine to give it up.
In this case it is neither used for arguing, nor for explanation really, I think, but as a bit of rhetorical flair. The analogy is to an obviously stupid thing to do, throw away your bike because of some easy to fix cabling issue.