I am pretty sure Twitter gets a hufe discount. A company like Twitter is on Splunk platform itself a huge advertisement for more future traditional Fortune 500 companies.
We log >>100TB/day in splunk and get all the discounts. It’s still ridiculously expensive.
Many of the issues presented in the article ring very true. Splunk is pretty amazing for adhoc analysis/threat hunting. However, once you know what you’re looking for the value proposition drops precipitously.