You have stated the party line but......
The article was written to describe the engagement in detail describing the amount of death and destruction in the total battle. The piece describes in detail how Hamas was severely defeated in mass.
So far as I know there is no other article describing how the IDF found and then destroyed a massed Hamas force. The idea of a massed Hamas force is seldom expressed because Hamas doesn’t mass its forces.
If the intent was to defame the IDF, describing the win and how it was accomplished in detail the author did a poor job.
Precisely; as this was against a concentrated enemy. In this type of war these opportunities are few and far between.
Khe Sanh was fought because the US Military was frustrated in finding and bringing a superior firepower against a concentrated enemy. Until this point General Giap had been applying asymmetrical warfare techniques. There is still much debate as to why at this point in time he did so.
Despite what you read from many sources, if it was a diversion the following Tet Offensive, it was militarily a disaster for the NVA and set them back many years. It was however strategically a victory for the NVA from a propaganda viewpoint.