You really didn't pay too close attention this year, did ya? He passed up on throwing to open "lesser" receivers way too much instead opting to throw at Adams when he wasn't even open or taking a bad sack.
You implied that Rodgers doesn't throw to guys he doesn't know and for evidence you point out this past season, in which Rodgers was throwing to guys he already knew with the exception of Lazard.
You're right that at times in 2019 Rodgers was missing open receivers. But I attribute this to his lack of comfort in the offense and a lack of faith in the other options-- as opposed to an unwillingness to throw to guys he isn't familiar with. He was willing to try. MVS received as many targets, 21, as Adams did through the first three weeks. But targeting him was largely not paying off. Similarly, his targets of Allison weren't paying dividends.
Good things happened more often when he threw to Adams and Jones, so that's what he did. And when Lazard stepped up, literally the only player on the roster to receiver 10+ targets who Rodgers
didn't have any previous history with, Rodgers targeted him. How do you explain that if he supposedly won't throw to guys he isn't familiar with?
In the past, Rodgers has been willing to target players allowing that they are talented and getting open. The narrative that he won't target new options really emerged over Jeff Janis, who was ridiculously overrated by Packer fans. If they add a talented option (or two) via FA or the draft, there's no reason to think that he won't target that player.