Por que nem todos os Jedi do Templo Jedi sentiram Anakin e sua legião de pensamentos de Clones?

Os Jedi no templo estavam em grande desvantagem. Os Jedi mais capazes eram os combates fora do mundo que lideravam o Exército Clone e aqueles que foram deixados em Coruscant eram os jovens, os idosos, alguns guardas, vários funcionários do Templo (bibliotecários, mecnicanos, cortadores e tal) e alguns membros do Conselho que não eram. no prédio quando o ataque aconteceu.

Quando a Ordem 66 foi decretada, os Jedi foram sistematicamente mortos pela galáxia ao longo de apenas alguns minutos. Aqueles que permaneceram vivos parecem estar sofrendo de algum tipo de choque relacionado à Força na mudança no equilíbrio da Força da luz para a escuridão. Além disso, os Clones não são realmente malévolos, apenas seguindo suas ordens de forma desapaixonada:

With the Jedi Order overextended, spread thin across the galaxy, each Jedi is alone, surrounded only by whatever clone troops he, she, or it commands. War itself pours darkness into the Force, deepening the cloud that limits Jedi perception. And the clones have no malice, no hatred, not the slightest ill intent that might give warning. They are only following orders.

_{^{Star Wars: Revenge of the Sith - Official Novelisation}}

Além do que Valorum disse, eu especularia que a idéia de que o lado sombrio estava "nublando" a habilidade Jedi de detectar vários perigos (especialmente aqueles ligados ao lado sombrio, como os dos Sith ou dos Jedi caídos) serve como uma explicação geral para o motivo pelo qual os Jedi não previram esses perigos. Da seção "Nos bastidores" do artigo "Chosen One" da wookieepedia:

Several stories suggested that the Sith were unbalancing the Force by strengthening the dark side and weakening the light side for Force-users everywhere. In Attack of the Clones, Mace Windu said to Yoda that "I think it is time we informed the Senate that our ability to use the Force has diminished." Also in that film, Dooku told Obi-Wan the Republic was under the control of a Sith, and Obi-Wan replied "No, that's not possible. The Jedi would be aware of it", to which Dooku replied "the dark side of the Force has clouded their vision, my friend." In the Star Wars: The Clone Wars episode "The Wrong Jedi", Ahsoka Tano had been accused of a crime and said she couldn't tell who had really done it because her senses were "clouded", and Yoda responded "Clouded by the dark side these things are, Padawan Tano. Dangerously clouded. But not just surrounding you. Surrounding many things, in these times." The Revenge of the Sith novelization referred to "the darkening cloud upon the Force that had risen with the rebirth of the Sith" which made it harder for Mace to see the significance of structures of people and situations he perceived in the Force, and similarly the novel Shatterpoint referred to "the shadow that had darkened Jedi perception of the Force".