Pomodoro and journals are part of ADHD treatment and that's OK. (There may be better behavioral therapies, like setting alarms and writing plans). The presence of a drug for a condition is not the same as the existence of a condition, and drugs are not always superior to behavior therapy. If you had low muscle mass, you wouldn't say "thank heavens it's a recognized condition that I can treat with steroid injections, so I can stop messing around with weightlifting!"
Pomodoro actually works quite OK for me. It doesn't solve the problem, but it's one of the more effective strategies to get some work done.
I'm not saying there are magic pills. But most articles about procrastination seem to target regular people, for whom this is not that big of a problem.
If you had low muscle mass, and weightlifting and diet didn't help, you'd sure be grateful if it turned out to be a recognized condition. Even if there was no effective remedy, you could at least tell the people saying "you're doing dieting/sports wrong" to shut up.