The common claim the that the stories are remarkable for their even tone seems to me to miss the point.
That claim, common in recent years, is certainly counterintuitive.
This was a common claim used by galleries throughout the country in order to reproduce artists' works without having to pay to do so.
A common claim is that language is governed by social conventions.
A common claim of creationists is that evolution has never been observed.
By far the most common claim is that the review has helped to clarify aims and objectives.
Ballmer rejected the common claim that software is too expensive.
This is not the same as self-pollination, despite the common claim that tomatoes do so.
The other common claim is of actual or potential reduction of property values.
Hypertension, not in itself a disease but a symptom, is the sixth most common claim.