Other than "use the right controls" (i.e. the full-size radio controls), no. Fixing that could be a few minutes' work, though I've not yet tried it out.
However, this is the only bit of the preferences interface that over-rides behaviour like this (to insert two different headings for one set of radio controls), so it's a bit odd/disruptive from a design perspective. Might be worth re-considering longer-term.
None of us really knew what we were doing when adding these preferences. I made a rough spec for what I wanted it to look like, and David implemented it. It looks okay and functions fine, but as James notes it's a mess under the hood, and inconsistent with other preferences. Sounds like a minimum viable product! I don't know whether I have the expertise to fix this myself.