I have a lot of issues with this trade. First of all, as discussed in other threads, it’s illegal as DDR can’t be signed and traded on draft night.
Also it’d mean a capitulation for Warriors’s championship hopes for the sake of savings. They’ve shown the will to spend and I can’t see them completely change course, especially with Steph being a FA soon. They have the assets for a star trade - Wiggins, Wiseman, 7, 14, future picks - this is a very good offer that few teams could beat. They may not get Beal or Lillard but it’s enough to get another really good player.
Besides if they simply want a salary dump and are offering 7 they could get better deals than having to take on KCP and Kuzma.