Keep in mind that at this point DX is not taking the drafting team into account - they just have prospects listed 1-30 and since the Kings currently are sitting 7th, they get the "7th" prospect on the chart. Later (after the lottery, I think) they will start to take into account team needs.
As far as Gordon, there are cases for him and cases against him. As Baja points out, he can't shoot. And there's a bit of question on position for him. I'd incline to call him a SF who can slot down to PF for matchup purposes if the other team goes small, but others would call him an undersized PF. If we take Gordon and Gay comes back, that could present a bit of a problem in finding Gordon minutes, so it's maybe not the greatest fit given our current positional personnel. At the same time, given the current skillset of our personnel, a perimeter defender who can lockdown a three (and I believe that Gordon can do that) fits our needs perfectly. And the last time we passed on an athletic SF who couldn't shoot but was a great defender at the #7 slot...his name was Kawhi Leonard.
So it's a tough call. If we jump into the top three, I think we go with BPA and we don't worry about it. At #7, there will be good players there, but practically every one of them has a caveat. In brief:
Exum: Probably gone at 7, difficult to gauge ability, combo guard not biggest need
Smart: Probably gone at 7, can't shoot, combo guard not biggest need
Randle: Not a great defender, duplicates Cousins' game too much
Vonleh: Good fit but defensive abilities unclear, maybe not athletic enough
Gordon: Can't shoot, poor playing time fit if Gay returns
Stauskas: Scoring 2-guard conflicts with McLemore, front office probably not ready to give up on Ben
McDermott: Probable defensive liability, bad fit if Gay returns
Harris: Good perimeter defender but again may conflict with McLemore
Cauley-Stein: Just what the doctor ordered, but losing PT in Kentucky, sickle-cell trait may limit effectiveness
Capela: Big question marks on readiness, may need to be stashed in Europe for a bit, but could be good fit
Ennis: Is he even better than what we have now at PG?
Anderson: Ultimate wildcard. Big skills with zero athleticism and little D, probably runs the offense but has to defend the PF/SF.
There's just no slam dunk in the mix by any means. But there are good players all around.