It is quite relevant: the buyer should beware what to buy in-game.
The interface is supposed to provide the information that I asked for. The fact that it doesn't is an oversight. PC players get most of the missing information, console players do not. I don't believe that the designers intended to introduce a deliberate mistake to the UI, simply to force the player to avoid purchasing things on the basis that they might get screwed (Golden Box notwithstanding, which clearly states that the player may get screwed.)
The result is the requirement that players save before schematic purchases, and reload and replay sections of the game after they have access to the information. There's nothing to "beware," it is simply pointless saving and reloading in a game that already has issues with how save games are dealt with because of autosave frequency.