I think you're mistaken. Operative/Scoundrels only have a single ability that stuns and it lasts 4sec. Roll one and read the tooltips. If they're spec'd into collateral strikes, they have a 1.5sec knockdown upon using hidden strike. Which can only be used in stealth and while behind the target. Knockdowns you can't do anything about so if you're using your resolve cd on that you wasted it. However if you eat the knockdown and use cd on the stun you're free to use defensive cds, dot them and then root/slow and kite an operative/scoundrel. As most people know an operative/scoundrel that is kept at range and out of stealth is a very dead operative/scoundrel.
I have nothing against casual pvpers that don't know how resolve works. But I do have something against people making ignorant speculations before they take the time to research the cause and effect of what they are trying to crucify. If it seems like I'm telling you how to play your toon it shouldn't just seem like it. I am.