I think PhoSita nailed it.
The whole paragraph reads: "Regarding team preferences, Boston is not a top target for Davis, sources said. There’s a growing belief of uncertainty that Kyrie Irving will re-sign with Boston, sources said, even though he vowed to do so at the beginning of the season."
So there's 2 things there, both attributed to "sources." Different sources? The same sources? Who knows but it reads to me like the "growing belief of uncertainty (

)" is coming from people around Davis, not people connected, in any way, to the Celtics.
Assuming New Orleans doesn't blow this and waits until the offseason to do a deal, by that time the Kyrie thing won't be any issue anymore.
We'll see what AD and Kyrie's conversations at the all star game look like.