Rule 4: Whining isn't constructive, even if you're right.
Rule 6: The problems you're observing with DRW aren't game bugs. You're just doing it wrong. DRW won't copy your diseases to other targets with either pestilence or roiling blood -- only its own diseases. So you have to cast (and let DRW copy) outbreak or IT+PS, and then it can spread those diseases to other targets as expected.
And your claim that there's lag between summoning DRW and DRW copying abilities sounds like
exactly that, lag
Seems like they messed up DRW even more.
Since this week it takes about 1 second after being summoned for it to actually copy abilities now making it harder than it already is to multidot with DRW up.
I really hope they'll one day change it to actually just copy whatever I do on my target instead of randomly selecting it's own target and casting pestillence (ought to fix Roiling Blood + DRW while they're at it) on another, diseaseless target *sigh*