...And besides that, actually, while I'm redoing calculations and going over how my scale works.
The issue I'd like to address is where in the damage formula critical hits are applied. By my scale, weakness/resistance is the absolute last thing to be applied, after critical hits (thus, the crit damage is multiplied by the weakness/resistance modifier, in this case 1.5, along with the rest of the attack's damage). In fact, the reason my scale uses 1.5 as a factor is that it's almost always less than 7% anyway (e.g. in this case, a 120-bp attack becoming 180 after a crit; the crit adds only 6% damage to the attack), and if we were to apply the restriction here, the only thing that would change would actually be Pokey taking 1% less damage - Cool Beauty Violet Temptation would still go down in one hit.
Looking through both the present and past archives, I can't find a precedent for which is supposed to come first. I assumed with my scale that crits count before weakness/resistance, because it makes sense that an attack hitting harder than usual would hit even more harder than usual on an opponent already vulnerable to the attack. If I keep it this way then nothing changes in this battle, since the damage wasn't boosted by STAB or items or anything else. If crits are the last thing to happen, and thus add damage after weakness/resistance is already applied, it would change the attack's damage, but in this case only by 2% (admittedly, enough to make the battle drag out an entire extra round, but also to 100% guarantee that both battlers faint on action 1 - any attempts at healing would self-KO from energy use, and CBVT would faint automatically to sandstorm damage while Pokey would be sitting at about 4% after the damage cap).