In no uncertain terms, this statement from them is telling everyone to STFU and Rob will be back when he's ready.I think after the debacle with Gronk's arm, his family felt like Gronkowski might have been pressured into returning early, perhaps in part by speculative time tables that had him returning sooner. There have been reports that "he might just miss 1-2 weeks" or "it's a pain management thing," statements which might raise questions or criticisms if Gronk isn't back in the next couple games. The team and player are issuing a joint statement that they're going to manage this prudently, ignore whatcha heard.
Early in the 2013 season, Gronk missed the first six games and every week it was, "Gronk's practicing, he looks like Superman in practice, will he be back this week, why isn't he back yet?" I think everyone involved wants to avoid a repeat of that. I don't think there's anything to be concerned with here.