From the article

The charging decisions in the indictment reflect smart lawyering by the special counsel Jack Smith and his team. The beauty of this indictment is that it provides three legal frameworks that prosecutors can use to tell the same fulsome story.
It will allow prosecutors to put on a compelling case that will hold Mr. Trump fully accountable for the multipronged effort to overturn the election. At the same time, it avoids legal and political pitfalls that could have delayed or derailed the prosecution.

And further down

A conspiracy requires two or more people who agree to participate. This indictment lists but does not yet charge or formally identify six Trump co-conspirators. Mr. Smith clearly has enough evidence to charge those unindicted co-conspirators but has chosen not to — for now. This, too, is a smart tactical decision.

and in conclusion the author states

This indictment presents detailed and overwhelming allegations. It reflects sound legal and tactical decisions that should allow the government to move quickly and put on a powerful case.

It seems the feds already know exactly his his game, and wrote the indictment to head off as many avenues of delay that he may try to take.

Remember, Trump has decades experience fighting in civil court. Federal court is a very different ballgame.