If you think I'm wrong, and these arguments have nothing to do with it, just tell us what explains Claude not supporting AGENTS.md.
Was it such a grand engineering challenge? Too many 'legacy' projects relying on both AGENTS.md/CLAUDE.md and that has recently changed?
I've made clear my belief on the reason behind it - branding decisions outweighing utility.
Add something to the thread by sharing your version of a 'more likely' decision process that led to the choice to only now support it.