Pentatonic Blues Interval Flavors

Doctor of Music Composition Professor Lawrence Fritts describes the pentatonic scale as conveying the following flavors in blues music his encyclopedic 2000 Blues Licks that Rock (pg 2, 2012):

1: "stability, resolution, and finality."
b3: "sadness, anger, ...[or] aggression."
4: a "passing tone" from b3 to 5, which often resolves to b3 when "held for a beat or more".
5: "stability" or a path to resolve to the root.
b7: "sadness, longing, and rootlessness."