Do you also agree:
God can inject mutations into common descent whenever he likes to produce what ever forms he wants.
God alternatively could have made everything without a strong signature for a tree.
Of God can de move create life, he can certainly do both these things. #1 deomonstrates why ID arguments are not arguments against common descent. #2 demonstrates that God could have made life in a way that did not look like common descent, but he did.
That is why the tree structure is de facto evidence of common descent, even when taking theology into account.