Less chance of an update breaking things. Lots of small and frequent updates, instead of rare and large update packs/stacks.

I would say a rolling distro update has a higher chance of it breaking something. Each one might bring in a new major version of something that has breaking changes in it. But that breakage is typically easier to fix and less of a problem.

Point release distros tend to bundle up all their breakages between major versions so breaks loads of things at once. And that IMO can be more of a hassle then dealing with them one at a time as they come out.

I tended to find I needed to reinstall point release distros instead of upgrading them as it was less hassle. Which is still more disruptive then fixing small issues over time as the crop up.