Earlier quoted context omitted.
I'd suggest they got a director/manager who was BSed into "fascinating" presentation from Datadog salesmen. A lot of great opensource projects are killed pretty much the same way. Disclaimer: datadog may (or may not) be a good product, it's irrelevant in the case.
Datadog is a great product that's likely to have been pushed by the developers or the ops team. Grafana has equally "fascinating" presentations for management. Management doesn't take much but a few gauges chart to be impressed.
Once again, it's not the matter of how great or crappy product is. It's matter of marketing and tenacity of sales team.
Try to register your email for Grafana and Datadog. Last one will bombard you with endless pitching emails until you ask them to stop doing it.