With high dosages, I see no problem actually, but with something like 500mg of test E, by the time for the next injection, your test levels will be just above high normal. Not good. But, if 1000mg become 500, no biggie I guess.
EDIT: I didn't watch the video, but why every week? Why not not every 15 days? Once a week for all esters? Decanoate and propionate are two completely different animal. Seems kind of random to me.