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.
At the same time, if earlier humans lost in specific classes only to the races specialized for these classes, now they are absolute outsiders. Any other choice would be better. And only small races will lose to humans in the speed of movement.
