[yiyus]

I am just guessing here, but I would expect that there are better ways to solve the issue with the gate that are easier, safer and even cheaper than dynamite.

The article says only one of two gates has problems, but they cannot open only one because of the asymmetry that would introduce. So, to solve the problem with dynamite, it would be necessary to make very good calculations to be sure you make exactly the hole you want, then actually do it with a very high precision (for an explosion).

I do not think opening that gate is as much a technical problem as a problem of initiative and responsibility.