Rose Howell is very proud, but she is quite amiable towards Carson Flores and others.
Her pride stems from the formidable strength of the Divine Wood Palace, while her amiability is partly due to the relationship between Carson Flores and Alfred Weaver, and partly due to the talents and connections of the three of them.
The Divine Wood Palace is not the only one wanting to recruit these three; haven't you seen everyone fighting over them?
If it hadn't been for Rose Howell's strong capabilities and solid backing, she couldn't have secured this opportunity. Now that she has the right to choose Samantha Tate, she still needs Samantha Tate's consent.
If Samantha Tate does not agree, then there's nothing she can do; she certainly can't just kidnap her.
Everyone else is watching eagerly. As soon as Samantha Tate refuses the Divine Wood Palace, other Sects will immediately extend their olive branches to her.