Fair disclosure: 1) I teach/coach Agile/Lean/Kanban/Scrum, and 2) I couldn't care less about brand names and religious dogma. I'm a developer first. If it works, do it.
Having said that, this author does not know what he is talking about. Apologies for being so blunt, but there it is. And he probably doesn't know what he's talking about because his organization has failed at making changes.
Really there's just a couple of questions to ask yourself. Can you get everybody important to the project into the room working together? Can you guess what you might do over the next week or two?
If you can do those things, hell if I care what you call it. If, however, you believe that complex systems must always consist of dozens of people with various deep-dive specialties? Then we've got a problem.
The problem isn't that some things in life are tough. Technology development is certainly tough. It's that you need to realize that the enemy of productivity has been siloing people and specialists that want to hand-off their work to others.
In some cases, the business environment means you can't have everybody in the same room. Fine, there are strategies for that (too much to go into here). In some cases, people just want to keep working the way they've always worked. Most of the time it's the latter case, not the former.
It's a shame that this person's environment has failed them in this way. No, Scrum is not made for a lot of things, but you are not a special snowflake. I can freaking guarantee you that no matter what technology problem you're solving, all that Scrum/Lean/Kanban/yadda yadda stuff has been used to help folks run fast. I would suggest trying to find other teams doing the same thing you are, only much faster, and watching what they do. That's how all these buzzwords came about, anyway. If you don't want to believe the books and trainers, and I'm fine with that, go watch it work. Then write another article. :)