I didn't notice that post. I am in favour of floating ASIs, but not in favour of the TCoE rules for moving racial ASIs.
Oh well, going forward please understand that what I am arguing in support of are floating ASIs as found in the most recent official material. Concretely, separate from race, a choice of +2 on one ability score and +1 on another, or +1 on any three different ability scores.
Seeing as the OP was discussing what must become the final official version, that is the version that I am saying will become the final official version. By 5.5th, the experiment in TCoE will join the dusty archives of D&D splatbooks and be largely if not entirely forgotten.