Another issue with Gen 1 crit mechanic is high crit moves - which, if you have at least 64 speed, will always crit. And even if you're not - you need to be abysmally slow in order to not have a reliable crit ratio. An example of a stall murderer is Crawdaunt. Crawdaunt, with Crabhammer, has an 85.9375 crit chance every time it hits. Pack that with Adaptability, and you have a 400 BP move after STAB. It still has 90 accuracy, but that's still an insane amount of power. To put into perspective - A neutral STAB Knock Off from Craw has 195 BP. A 2x resisted crit STAB crabhammer has 200 BP. Not that you should be using Knock Off - Crawdaunt has Night Slash with the same crit ratio, hitting 280 BP after STAB. You know who else is insane? Drapion. Night Slash and Cross Poison now have 100% crit chances. This, along with Sniper, gives it 2 STABs with 210 BP (before STAB) (it's 315 after STAB). It can even use Slash for neutral coverage (it has 210 BP as well).
To put this into perspective - V-Create has 270 BP after STAB.