Hey! We (I work at Ashby) are on latest node 16. We'll update the post to reflect that. Happy to chat over email (edit: found your email and will reach out)
We could break blocked-at into two layers so that you could provide the data collection mechanism.
You could report to datadog while using the false positive filter.
Also, there's a bunch of tools you could use before you deploy blocked-at or async hooks at all.
Note it's midnight here and I'll stop responding very soon :D