HMS Swift was a good starting point for later destroyer development, although calling it a post-treaty destroyer decades early goes too far. That distinction treats Swift as a precursor without reading the complete later type back into it. The brief aside does not specify which individual design features carried forward.
Notable Point · 59:31-59:39
HMS Swift as a destroyer precursor
HMS Swift is treated as a useful starting point for later destroyers, rather than a complete post-treaty design decades ahead of its time.