Although the thug doesn't know the exact identities of the two hostages, he knows that they were personally escorted onto the spaceship by the President of Meteor.
Being escorted onto a spaceship by someone at the Body Integration Realm suggests their status is comparable with the same.
Those at the Body Integration Realm can open space channels on their own, so the fact that these two are traveling in a spaceship means they're definitely not at that level.
Divinity Transformation is half-energy, half-physical; these two didn't fit that form, so they weren't at the Divinity Transformation Stage, either.
That's fine. The thugs are at the Nascent Soul Stage and they have the upper hand. Even if these two were also at the Nascent Soul Stage, they can't pose a threat.
"Your security here is terrible; I must report this to the sovereign!"
"Yes, we are both in a position to communicate with the sovereign!"
