Wells Fargo Sr. Software Engineer interview questions

It was 3 rounds of interview. 2 technical, 1 managerial. The First round took place on Phone where they validated the requirements related to the job. Second was another technical round.

First I have applied through the career site of Wellsfargo. I got a call to have discussion over phone for 1st techinical round. It took around 1 and half hour to complete. 2nd round is techno managerial and last for 40 min discussion. 3rd is HR round over telephonic. I have completed all the rounds and here comes the twist. HR said you are about to relieve on couple of days and we need a candidate who is on job role or having notice more than 1 month. And they will process this offer and joining date would be after 1 month from the offer processed. How can somebody will expect to have career gap? More over due to talent crisis other company HR's are expecting to get the candidate joined as soon as possible. But Wellsfargo is opposite of it. I disappointed due to this HR policy.