It's posted on the Mt. Whitney Facebook group. There's apparently two large boulders that need to be blasted first but everything else looks good. I don't care much for FB but that particular group does provide a lot of useful up-to-date information.
I'd also take anything that comes from the Whitney Store employees with a grain of salt unless it's coming from Sharon, Doug or Doug Jr. There's a lady who works up at the Portal who currently works down at the hostel, she's completely clueless and quite rude, with the personality of a rock (speaking of rocks!). If it was coming from her, that'd definitely explain the misinformation.
