Good question.
I drilled down into top 3 search terms from the last month an updated the article.
Results are:
- Git Tips – Average position declined from 2.4 to 2.9
- Angular Performance – Average position improved from 2.4 to 2.3
- Node JS Memory Leak – Average position improved from 3.4 to 2.9
Based on that, in comparison with other observations I am pretty sure that my site did not get penalized. Please let me know if you disagree or if you think I should pull some other stats.
Edit.
> [..]
> Since not having AMP support does not result in a Google Search penalty, why bother?
Maybe it DID get penalized?