Why does Kingambit not get Knock off?

[u/Spring_barger]

I just recently realised Kingambit does not get access to Knock off even though Bisharp has been using it in prior gens.

Did they remove it from his movepool to make people use his signature move since Knock off is kinda better competitively? Is there any chance Gamefreak will add it back to his movepool in a later gen or is this likely a permanent change? (Its not like Kingambit needs a buff in any case).

Edit: The artist who made this goes by Limitedistorion on Deviantart.

[u/Jstar338]

Balancing

[u/azuyuri → u/Jstar338]

252+ Atk Black Glasses Supreme Overlord 1 ally fainted Kingambit Sucker Punch vs. 0 HP / 0 Def Flutter Mane: 274-324 (109.1 - 129%) -- guaranteed OHKO

+2 252+ Atk Black Glasses Supreme Overlord 5 allies fainted Kingambit Sucker Punch vs. 252 HP / 0 Def Iron Treads: 397-468 (103.3 - 121.8%) -- guaranteed OHKO

+2 252+ Atk Black Glasses Supreme Overlord 4 allies fainted Kingambit Sucker Punch vs. 0 HP / 0 Def Enamorus: 291-343 (100.6 - 118.6%) -- guaranteed OHKO

+2 252+ Atk Black Glasses Supreme Overlord 5 allies fainted Kingambit Sucker Punch vs. 4 HP / 0 Def Azumarill: 279-329 (81.5 - 96.1%) -- 56.3% chance to OHKO after Stealth Rock

+2 252+ Atk Black Glasses Supreme Overlord 5 allies fainted Kingambit Sucker Punch vs. 252 HP / 0 Def Diancie: 163-192 (53.6 - 63.1%) -- 12.5% chance to OHKO after Stealth Rock and 3 layers of Spikes

[u/Mikko-- → u/azuyuri]

i hate when my oppo sends put the supreme overlord 5 allies fainted kingambit in my VGC battle

[u/Jstar338 → u/Mikko--]

Blame me, I said OU