Replacement of ABS rear hub sensor on 2005 Chevrolet Uplander

Our brake shop showed me the failed rear hub ABS sensor assembly. CRACKS APPEARED in the white plastic cap where the wire plugs in.
Should we expect the other sensors to fail? Is this a manufacturing defect?

Asked by for the 2005 Chevrolet Uplander
not a defect just results of weather and salt. eventually you will have other failures as all parts eventually wear out.