Personally I think taking the journalistic perspective of the publisher into account when reading an article is important.
Also, the 23% sounds be a bit misleading. They suggest that it's due to the EVs that were bought. I think it's four factors: The usual drop, plus the reasons they have in mind, plus price pressure from new EVs that are dropping in price, plus price pressure from competition with new EV models (ie. the number of EV models on offers is increasing). Maybe they just forgot to mentiont the last two.
Typical car depreciation:
> Year 1: 15-35% depreciation. 65-85% of the original value.
Seems that this is bang in the middle of expected depreciation of any car.