Indeed. I don't know anything about New Relic apart from that summary, and it seemed to contain enough information to get started making a similar product. I t

Indeed. I don't know anything about New Relic apart from that summary, and it seemed to contain enough information to get started making a similar product. I think their potential customers likely understand the jargon used, which is really just "serverless" and perhaps "monolithic", maybe "platform". I don't understand OP's problem with "observability", though. I don't think that counts as jargon, and it doesn't seem like a hard English word to understand. A dictionary would have helped more than Wikipedia, in any case.