Thanks to J. Alex Halderman, the computer scientist who was watchful enough to realize the opportunity for hacking presidential elections does exist. When you face that possibility, and given there are hackers who will hack if given a chance, of course you do a recount, of course you do everything you can to ensure your election was not hijacked.
It is being said there is no evidence of interference. I say, No evidence of tampering? Look instead at the fact there was opportunity. If you left a bank vault unsecured, would you be saying, "No, let's not go into the vault and see if anything was taken unless we first find some evidence outside the vault that suggests we've been robbed."