TBH, having worked in big companies, I don't really trust the quality of their research without really thinking through it myself -- is there a non-paywall version of that article that has specifics about what the data showed?
More direct to your question: Not necessarily anything more than their research, but something that details what specifically their research shows and what those research methods were?
FWIW: I did end up finding a nonpaywall version, and the research wasn't super reliable / great. They asked people specifically how instagram made them feel, which is subject to a lot of biases and not a solid objective indicator. I understand it may be the best we do, but that's not a great reason to trust it.