Do you have any evidence to back your claims or like many others you are throwing figures left and right without any credible basis ?
10-20K casualties in a small country like Armenia can't go unnoticed,let's be realistic.
Just my personal opinion which if I'm honest is more legit then anything that comes out of the armenian political spectrum. This is a country whose leader went on international TV spouting the hilarious lies that Turkey was during the war also committing genocide directly within armenia itself. Pretty much everything that came out of armenian channels were all lies.
You would have to be an absolute clown to take any Armenian state figures realistically. The fact people throw about armenian declarations as something meaningful is hilarious when you consider the relentless lying and the fact they have a vested interest to lower the figures and lessor the impression of the defeat.
But my basis is really on the comparison of the Afrin op in which about 4000 ypg were killed. This is was before the Turks developed their drone warfare doctrine that was so destructive in Karabagh.
Lets also be honest armenia wouldn't surrender after losing just under 4000 men. The fact we also saw old men, children and even women being sent to fight on the frontline also points to the fact they were losing many soldiers daily.
Would not surprise me if the real figure is closer to 20k dead. Armenia got absolutely crushed, can be no questions about that.