Why can't you pick any IV when recalculating stats with Hyper Training?

Urgent piece of feedback for the game development team:

An addition to the Hyper Training feature is very much needed for competitive play. As mentioned on the article https://www.pokemon.com/us/strategy/learn-how-to-train-pokemon-in-pokemon-scarlet-and-pokemon-violet,
sometimes you are looking for a Pokémon with a low Attack or Speed stat. Hyper Training allows stats to be calculated with the maximum individual strength. However, Hyper Training needs to allow stats to be calculated with any value of the individual strength, not just the maximum. For instance, some Pokémon are often used in Trick Room, which means players want their Speed stat to be minimized, including having an individual strength in Speed of "No Good". This issue is especially important for Pokémon that cannot be bred such as the Paradox Pokémon and Legendaries; often these Pokémon can only be caught once per save file.

An egregious example is Bloodmoon Ursaluna which can only be caught once per save file. Because it is a slow special attacker, often players want minimum Attack and Speed at level 50, which requires IVs of 0 or 1 in both. The odds of that are 1 in 1280. Each encounter with Bloodmoon Ursaluna takes over a minute, which translates to an expected time of over 20 hours to get minimum Attack and Speed.

GameFreak or Pokémon Company, whoever programs the games, PLEASE allow stat recalculation with any individual strength value, not just the maximum. There have already been so many other quality of life improvements such as passing down egg moves in Picnics, hyper training at level 50, and nature mints. This feature is literally the last thing missing and is essential for competitive play.