I definitely agree with this theory of the varying form.
I experienced this over the last seasons, from level 6 to 11, it's basically every year the same.
What I learned from it is that it is not a good idea to change your tactics, sell all your players and buy new ones, to get over it. This makes it even worse, so to have a well-established formation is useful and gives you an edge over your opponents.
Nevertheless, it will not help you to overcome the form crisis.
Additionally, there seem to be some teams, that don'T have it. The following is just a idea of me, why this is the case: i have an opponent in my league for about 5 seasons, not having any huge form crisis (maximum 3-4 games every seasons in a row he looses). What is different to the rest of the league is the fact that his squad consists of scouts only.

Maybe this is a brash way of nordeus to elicit more tokens out of us