A super essential feature is missing from Fusion360!
It seems like there´s no precise way to move a T-spline vertex in reference to other geometry (Sketch,Work Geometry etc.):
Match Edge only works on edges.
Flatten only works on more than one Vertex.
Edit Form with Object snap doesn't snap to Sketch or Work Geometry, neither does Pull Command.
Align moves the entire body, Move is also not an option.
Suggestion for new Match T-Spline Vertex ability:
I guess that this function could be integrated in the original Match feature.
Preferable would offcourse be if the new Match Vertex, had an optional History/Parametry option, so if the the Sketch or Work Geometry later on was modified, the T-Spline vertex would follow.