I like your analysis, although I disagree with assigning multi-bonuses separate values. Originally, it seems that ZoS assigned multi-stat (tristat glyph and food) as scaling off the original SB value, with lower individual stats, but higher sum. This is also something they've mentioned in past developer notes. I believe the set bonuses ofshacklebreaker, amberplasm, and domihaus are the exceptions, not the rules. The analysis of wd/sd and crit seem to be correct.

Initial balance of classes are closer, based on my own comparison, when assigning values as such. ZoS seems to have balanced the racials with total stat bonus, not specialized role bonuses. Specific considerations for role should be left to the player.

Now for today's changes, I also disagree with the altmer sustain change. I would like to see them more attuned with magicka. I understand wanting some type of dual nature due to the balance of racial passives, but it just doesn't fit. Also, having sustain on altmer doesn't diminish from breton's role as THE sustain race.

Am hoping to see some sort of fire damage increase for dunmer, as well. It fits lore and the old passives.