Yup, I get it. The energy released by a thermobaric weapon is spread out over a very, very large distance. Inside the blast, people will be killed and equipment will be rendered interoperable by the extreme temperature and the over pressure. Outside the blast you have a very strong (but subsonic) blast wave. But inside the blast, the pressure will envelope stuff, and push on it from both sides. With regards to blasting away a very large ship, thermobaric weapons are not particularly effective.

I understand that it’s not the ideal bomb, but it’s the strongest non nuclear option. Enough of these bombs could disappear the ship and the debris