1. He is a veteran who doesn't need a ton of practices. Kyle knows coming in (per Kittle quoting Kyle) that Reed is "the best route running TE ever" . So Kyle believe he knows what he has got but also knows he has injury problems so only wants him to practice minimally and save him for the games (especially the first few while low on WRs) .
2. Kyle knows what he has and what a weapon Reed is and he doesn't want anyone knowing how he is going to deploy him. He doesn't even want the beat writers reporting how he is looking or how he is being used in practice. Coming up here practices are closed to the public (even the beat writers). I bet you this is when Reed starts practicing. Kyle is going to have him practice a handful of plays and only a handful of plays that he will be deployed in and he will only practice them in practices where no one else can or will be watching.
End summary of conspiracy is basically saying Kyle knows he is hurting at WR for the first couple of weeks so he has been planning all along by not letting Reed practice in front of anyone to have Reed be his healthy secret weapon that nobody (not even the beat writers see coming).
[ Edited by ninerfan1984 on Aug 24, 2020 at 7:46 AM ]