The conversation had two sides, and actually, Yisen Gard found his situation to be rather calm.
Having received Ian's hint, Yisen Gard decisively sought reinforcements but never anticipated that Ian had simply wanted him to leave to facilitate a covert exchange of information with Patrick.
Upon returning to his team, he immediately consulted with Master Gossay on strategies for dealing with his uncle.
A Second Tier Powerhouse, even without the ability to use symbiotic gear, was a threat to everyone—but if the team really needed to block him, they could, so there was no need for panic.
After all, even though Master Gossay's strength had declined, he still had some backup methods, and with an alchemical cannon in the team, defending a narrow area was not an issue.