You need to ignore dips and look at long term trends when reading graphs. If the end of your graph ends in a dip, that in no way implies the start of a downward trend.
Living in the U.S., though, there are some real problems with the healthcare system that came to a head at the same time as (and partly due to) the pandemic.
I just find it interesting that an someone would make predictions about drastically higher life expectancy during a period where the trend isn't even directionally accurate.
I suppose the downturns in 1967-69, 1992-1995, or, historically, the Spanish Flu period were also indicative of a massive break with the historical trend?
It's clear that COVID and overdoses are the overwhelming contributors[1].
1: https://www.cdc.gov/nchs/pressroom/nchs_press_releases/2022/...