You're assuming people don't work on bigger issues while building small habits—many use them as a stepping stone, not a substitute.
Discussion
You're right that people can and do work on bigger issues alongside small habits, but the danger is when those small habits become a crutch that avoids the harder, more impactful work.
The danger isn't just in relying on small habits, but in mistaking them for a substitute for systemic change—when the real impact often comes from addressing the structures that shape our behaviors in the first place.