Answer: Candidates are not getting timely feedback about their applications.
Explanation:
From the information provided in the question, we realize that Antoine has a team of knowledgeable, and ethical recruiters at Luvia Insurance.
Despite this, Antoine observed that the number of applicants who accept offers has reduced and he realized that developed an unfavorable opinion of Luvia Insurance.
The most likely reason for this is that the candidates do not getting timely feedback about their applications. In a case whereby this occurs, the applicants would go to other companies who have reviewed their applications quicker and they've gotten a feedback from on time.