I'm assuming that they shopped him to contenders, but few teams had two firsts to give up aside from OKC. The Thunder didn't bite, so his actual value may be closer to a mid- to late first.
They have been shopping him and 19 to move up to acquire a second lottery pick. However, the Raptors need that pick for a Giannis trade. They've also been linked to Kharman Maluach at nine. Houston's been linked to KD, and the Suns likely want that pick back since it was theirs.
The player they want probably is expected to go in the back half of the lottery, so they are trying to leapfrog the team they think might draft him. Or, just reaching out to those two teams because they are the most open about trading their picks.
If neither deal happens, then Keldon and 14 for Cam Johnson and 26 is a good deal considering they were trying to move up 10 spots. In this scenario, they'd be moving up 12 and getting a young player they might like. For all we know, the player they might want will still be available at 14.