If they're truly superfluous then they waste the time of both sides, but it's the prosecution who get to decide whether or not to include a charge. The prosecution might not be holding out real hope of a conviction on the highest charges, but by including them they could include additional witnesses and evidence that will be heard by a jury and change their perception even on the more realistic charges, which the defense would have to react to.
Again, all hypothetical. For all I know theyre confident in the terrorism charge
But realistically criminal trials are a negotiation, and most of the work happens outside the courtroom
That's not true for every chronic condition though. Lifestyle and diet can only do so much when your body just isn't doing what it's supposed to.
I'm not trying to defend pharma companies, but it's the state of science today that some things can only be treated and handled with ongoing medication