There is little cause for concern at this point.
The references to "standardization" derive from the letter published by Brian Wheeler back in April.
https://forums.elderscrollsonline.com/en/discussion/466792/update-22-combat-direction/p1
The intent is not to "standardize" abilities, passives, effects, gear sets, etc but to develop and apply a common set of underlying rules for the game. Doing so will make it much easier to improve class identities in the future, avoid unintended and disasterously OP combinations, improve performance, and so on.
Of course there is a danger of standard rule sets creating homogenization. But long before that could happen, the horrendous morass of unique calculations, inconsistent applications, and other things that make code writing a headache.