Well, after weeks of fighting with this and finally posting the question...I figured it out soon after I typed this initial post. By realizing that the duration of the tracking data was off, I turned my video clip into a compound clip and, lo and behold, it worked as expected.
Since I didn't razor/trim my video clip, I just used ripple to shorten the video clip, it appears as though Resolve's Stabilizer nevertheless stabilizes the entire clip (even though the clip I can view is shorter). Now I'll know to cut the clips rather than roll/ripple them.
Thanks Me! You're welcome, Me!