You do have a point. However, why not look at it from another angle? The management failed to convince this employee, and this resulted in resignation. However, this guy was so good at work that the management didn't stop in their efforts to convince him and finally succeeded, which led to this thread being posted by Ankitaadhikary.
Regarding the employee, he didn't think, "Won't the company think very low of me if I agree to rejoin after resigning?" Or even if he did, he still went by his past experiences in the company (which would have been very good; else rethinking about resignation wouldn't arise) and the convincing mode of handling by the management.
In essence, both sides deviated from any ego or feelings and decided based on the facts of the case/situation.
Any comments with regard to this line of thinking?
Regards,
TS