JRPGs are occasionally scare or sold out around release. You rarely see games by falcom or atlus at retail stores like walmart, and they rarely go down in price on amazon (and often up). For example, it was impossible to find octopath traveler for switch at release.
Preordering something like trails of cold steel4 just makes sense.
All the super popular stuff like spiderman or assassins creed, final fantasy or super mario, yeah it makes NO sense to preorder. Hell, in the case of many games it makes no sense to even buy it for 1 or 2 years.. there's going to be patches and DLC and the game will drop fast in price. Buying FF15 early was a waste.
Impatient gamers are unhappy gamers in the long run.