Great, you can read a Fangraphs page. We bought at the peak of Varsho value. Atkins bought high. In classical economics, typically you wish to "buy low" (unless, of course you are trading for a bona-fide super star, but I doubt many would claim Varsho to be one).
Varsho's Statcast page did not paint a picture of sustainable, above average production at the plate. And his most recent 2023 campaign of an 85 wRC+ just kind of shows that. Now I'm not saying Varsho can't be good in the future. Just that the trade came with lots of downside at the time.