The main reason is due to prioritization. I felt it was important to assess the CICS model against the Michelson and Morley experiment first, followed by the Ives and Stillwell experiment. Both of these papers supply sufficient data to facilitate their re-evaluation using the CICS model.
It is interesting that Kennedy and Thorndike found a small positive velocity result. They suggest, in a footnote in their paper, that this value should thought of as 0 km/s “as has been customary in discussions of the Michelson-Morley experiment.” Their statement, along with the new findings associated with the Michelson and Morley experiment, suggest that the Kennedy and Thorndike experimental results should be revisited.