If the content of the paper is deemed acceptable by the ATLAS Collaboration after significant scrutiny, which will be at least a month if I had to guess, then yes, we should be really excited about this. It's not just an anomaly, it's a pretty clear bump in the data over the background. Even if it's not a Higgs, it's still a sign of interesting new physics if everything gets approved.
But again, that's only if the ATLAS Collaboration approves the result. It takes time to verify