It’s about decorum.

Berlinguer[*] has been described in many ways but was generally recognised for political coherence and courage, together with a rare personal and political intelligence. A serious and morally rigorous man,[87] he was sincerely respected even by his opponents, such as the Italian Social Movement leader Giorgio Almirante,[**] who paid his homage to Berlinguer and lowered himself in front to his coffin at Botteghe Oscure.[70]

[*] national ssecretary of the Italian Communist Party (PCI)

[**] Giorgio Almirante (27 June 1914 – 22 May 1988) was an Italian politician who founded the neo-fascist Italian Social Movement, which he led until his retirement in 1987

Allegedly Almirante, a guy who literally sentence fellow Italians to death, said that “Oltre il rogo non vive ira nemica” (“No foe’s wraith survives the funerary pure”)