they implemented a program called Penguin-II that now penalizes some of the very practices upon which many essay companies used to rely very heavily to boost their rankings
Yes, good point and you are correct. Many of them still rank well despite the algo change. That's why I've been wondering if it had something to do with their (better?) service. Obviously Google cannot know if their services improved, but maybe there is some human factor involved.
check the work for both quality and plagiarism.
That's another good advice (and advice to other students - never order very urgent projects since 50% of them tend to be plagiarized ;P. By the way, here is a good link to create animated essay service videos in case someone's interested: professorjosh.com/?p=4322.