It's certainly not only interested in solutions that can be implemented. It's interested in solutions that enforce the free market, and it paints non-market solutions as infeasible, even though they often work and are implementable. But this is invisible ideology and very easy to mistake for pragmatism, because a pure pragmatist will certainly appreciate many market solutions.
The final synthesis is not after having treated both sides. It's after having treated two sides, which are editorially chosen.
As far as dialectics it would be much more interesting if they could dialectically analyze their own internal contradictions between democracy and interventionist realpolitik, or between free-market fundamentalism and concern about externalities. But it doesn't really grapple with those, which is a sign that it's only applying dialectical thinking in convenient ways.
In any case, the Economist is not any worse than any other mainstream publication. Often they do pretty good reporting. But you absolutely must not rely on it solely especially for foreign reporting where you don't have bearings.