He seems to be claiming that in the phrase I don't feel comfortable signing up for a $7,000 extra flight without talking to you guys , it's the word to that sig

He seems to be claiming that in the phrase I don't feel comfortable signing up for a $7,000 extra flight without talking to you guys , it's the word to that signals the manager/subordinate relationship. It seems to me that ... without talking ... you is the best clue. In English, subjunctive case usually requires a to, and people asking permission use the subjunctive a lot. Is that the signal he's finding? Is that the best NLP can do?