Because they're counting deaths that weren't directly related to anything. There are supposedly seven people who "died in the Jan 6 riot" and yet two were suicides days-to-weeks later, three were heart attacks / strokes from physical assertions (or gas/spray, we aren't sure) and one died from falling / being trampled and one was shot in front of police.
The "7 people died in an armed insurrection" is a lie.
The most accurate statement is:
"one protestor/rioter shot by police at the Capital riot",
"one officer died from suspected injuries sustained",
"two people died in march to capital after trump's speech",
"two officers commit suicide after being investigated in connection to Jan 6 riot at the Capital"
"one rioter on Jan 6 fell to their death and were trampled by the rioters"
^ These are all more accurate, but probably reduces viewership. The statement was "how did the US news media lose their viewers trust". I simply summarized one event which highlights it.