You are correct that all traditional groups use "crisis in the Church" to justify their position. Sometimes they are correct to do so. But it must be used cautiously because it is a slippery slope to justify anything of a particular priest or group.The "crisis in the Church" is used by all traditional groups to justify their positions. If Rome comes back to the faith (e.g. pre-Vatican 2 days), do you think this or future "crisis" will go away? Modernism is unstoppable. Popes after Pope Pius X could not stop this monstrosity. We need to pray and fast for Heaven to intervene.
For example, Fr. Pfeiffer and Fr. Hewko used the "crisis in the Church" to justify the conditional ordination of "Fr" Poisson by non-Catholic orthodox non-bishop William Moran.
They use the "crisis in the Church" to continue their associations with and support of pervert and laicised priests.
And they use the "crisis in the Church" to justify their not cooperating with any bishop superior these last eight years.
These are incorrect uses of the "crisis in the Church".
God knew this crisis would come. We must maintain the Faith as best as we are able under these circumstances.
Our Lady will crush the head of modernism. Of this we can be certain. Our pleas, prayers, and fasting will help to bring it to fruition.