It is unlikely that they will be affected.

The conclusion does not influence the total amount of protein that you should eat daily for increased muscular mass.

It just says that there is no need to spread the proteins over 4 or 5 meals per day.

Even if you eat all proteins during a single meal, the effect will be the same.

For instance, if you practice time-restricted eating, that will not conflict with the desire of increasing or preserving the muscular mass.

Moreover, proteins that are digested more slowly seem preferable, and this favors the natural sources of proteins, not those more processed, like in supplements.

Who knows maybe they even lobbied for the result, its a big problem in nutrition science and how the "science" seems more like one fad after the other depending on which lobby sends more money