It doesn't really matter.
Qiu Chengwen didn't know if the people below had extended an unenthusiastic and early invitation to Zhao Yi or not.
Actually, he was planning to go to Yanhua University to extend the invitation himself. Making an earnest face-to-face invitation to an accomplished mathematician like Zhao Yi, who is not just another job applicant and shouldn't bear with the whims and fancies of interviewers, would be a major achievement in itself if accepted.
...
Zhao Yi only expressed dissatisfaction at the sincerity of the invitation from Shuimu University Mathematics Science Center; he had no intention of giving up his undergraduate studies or of working and studying at another university.
So, whether the other side was sincere or not didn't really matter to him.
Zhao Yi was now getting used to his new status as 'Professor Zhao'. Once he stepped into the Biomedical Research Institute's laboratory, he started enjoying the perks of being a professor.