You don't seem to understand either.
The Flames deal is a spicy vomit in the mouth. You've doubled down on the terrible deal the previous Flames fan proposed.
Let's set em up, and shoot em down.
Taking on a multi-season dump in Scott Darling would likely require either of Bean or Kuokkanen on its own. Holtby's value is higher than the other Prospect alone so that's a no go. Either dial up the value or remove Darling. Again the Caps don't need to take a Cap Dump to facilitate moving Holtby and his value is better than mid-tier prospects. My counter would be along the lines of Holtby --> Bean + 3RD + non-G short-term salary.
The Flames deal is decidedly worse. Smith is at best undesirable Salary to the Caps, Mangiapane a recent 6th Rd Pick and Dube a run-of-the-mill mid-tier Prospect. That's a bunch of chaff.
Holtby's value is likely close to the established precedent of Schneider, Varlamov, Lehner, Martin Jones, etc. and he's better and more proven so his value is likely around a mid-1st (8-15). I'm not sure either of those packages would be worth similar value without the Cap Dump Gs.
P.S. The idea behind trading Holtby is to pass the torch to Grubauer. The Caps have goalies in the AHL (Copley and Vanecek) I'd rather trust behind Grubauer and our defense than Smith and certainly Darling.