He sucks because he jumped into code he hasn't looked at for years, took time to understand how it all worked, recreated the bug, fixed the code and tested it

He sucks because he jumped into code he hasn't looked at for years, took time to understand how it all worked, recreated the bug, fixed the code and tested it just a bit slower than the guy who is working on that code every day??? I'd say he did alright and most engineers would be in the same situation, if not worse.