If new rules based on "Tasha cauldron of everything" then its bad practice. The variability is not reduced to +2/+1 . In fact, any race can distribute all its bonuses freely. For example , dwarves thus get +2/+2 , which can be distributed at their discretion. For humans, in this case, nothing changes at all because they already have +1 to all parameters, and they also did not recieve variant option. There are also rules about replacing skills and proficiencies that are not implemented in the current version. It is a bad practice to take a set of rules only partially and even modify them without taking into account the consequences. In this case, the obvious advantages are gained by races already having +2 /+1. Everyone else gets only disadvantages. At the same time, the optimization of races by classes will remain. Only it will be related to other features of the races.