I would start with deconstructing how they're arriving at those future values.
In your previous link they mention using a $/WAR of just over 9 million as a baseline, which seems reasonable, plus some positional adjustments and their own future projections. So some combination of positional adjustments and their projections are estimating Hoerner to be worth less than 5 cumulative WAR over the next 2 years, and just over 7 for 3 years for Raleigh.
Given that Nico plays up the middle(at both positions) at an elite level and Raleigh has been one of the more durable catchers in the game, both of those feel like severe underestimates when you consider their consistent production and age.
At a minimum, given the context of a team trading for either, you would assume an acquiring team would be bullish on them continuing their current levels through their team control and value them as such. Maybe that dynamic doesn't quite work for all players or in an agnostic tool like BBTV, but it does work that way in practice(and is part of why trades are harder than they used to be!). That dynamic also applies to any uncertainty about Nico's surgery recovery, like I mentioned upthread.