Earlier quoted context omitted.
Anecdotally, I've experienced the exact opposite. The company I work with had been doing waterfall development for 15+ years. We switched to agile using the Scrum framework. It wasn't smooth sailing the entire way, there were teams early on that struggled with adopting Scrum. Most often it was due to the team attempting to solve every retro issue by updating "the process", which only addressed symptoms instead of fix…
I had the same experience, in a longtime waterfall company, that adopted Scrum, with significant pain points but it was still a world of improvement. The thing that the Scrum haters don't see is that its biggest benefit is invisible -- it's in what doesn't happen, in what Scrum avoids . Scrum avoids the eighteen-month waterfall death marches that kill a department or a company. Scrum gets you thinking in terms of man…
Having said that, I'm glad Scrum worked for you.