Earlier quoted context omitted.
Under the sea who know for sure who made what? Even an ally can do such sabotage just to generate a military response against a common enemy he want to aggress but can't do without allies and those allies are not much interested if not forced or even a simple self-inflicted damage to justify a war the public do not accept but some in the government/élites want... Did you remember just Britannia to cite something from…
Conspiracy thinking isn't going to stop infrastructure projects from happening. For now. Fortunately.
Such "infra projects" are like, much like, the Desertech scam, a project to deliver p.v. from north-Africa to Europe able just to detour significant amount of public funds to a small set of private players. This one is just a bit smaller but essentially copy the same plot.
Other large infra projects, nearly 99% of all large ones, results in public money black holes for very limited results. At a smaller and more technical size we have had a period where anything must be big, after we learn that many small things are better than few big ones, that's happen for ship (with the sole exception of tourism), planes (777/A380 fiasco), giant road infra and so on. No conspiracy, at least if your vocabulary do not classify "economy" as "conspiracy" and rationality as plot.
Did you remember why we have switched from mainframes to cluster?