I took a moment and transcribed the key part of this, and here's what Schefter said:
“They weren’t getting a great vibe here as they tried to conduct communication with Brandon Aiyuk and his agent,” said Schefter. “The longer it went on, the worse they felt about it and eventually they said, ‘What are we doing here?’ Let’s just focus in on the young receivers that we have.”
“They feel like they’re excited about them, and rather than go ahead and give up a huge amount of compensation to the 49ers after or before going ahead to give up what would be a big contract to Brandon Aiyuk that he didn’t seem overly receptive about getting, they said we’re just going to stand pat and stand down.”