I do tend to agree with this. Understand that before this event, european power was deployed almost thoughtlessly to gobble up every scrap of land on the Globe. This was actually a done deal and such resistence as encountered had been seen off almost effortlessly. Most were thinking in terms of british mercantalism by then and not in terms genocidal Earlier colonial practise against the Americas. Thus these new empires were never true colonies.
The Russo Japanese war is one of those strange events that laid the foundation for so much political instability and violence in the years to come, but still remains relatively overlooked in much of the world today.