This is not the direct setup for the Taiwan invasion. That’ll occur in 2026-2027 while Trump is at his weakest. This is a test to see how the US and Europe respond to provocations. This is a common Chinese tactic that produces extremely valuable real-world data on likelihood of aggressive retaliation, determination of actual effects of communications being severed, and movement of forces in the area in which the sabotage was conducted and in other areas as well.
This is a dry run for a future, much larger operation and not the operation itself.