I also think the big SP holders will profit from this a lot. But I am not sure if this is going to be a bad thing in the long run.

If the big money guys get the hint that they are highly favored when investing big, I think we might be in for a surprise.

If we are able to get new money from big investors, let's say 40million steem powered up by them over the next 2 years... this would easily stop the downward pressure. Maybe then the time for mass adoption will come.

Don't forget that 10million USD will give you 15-20 million STEEM at this point in time if you buy it smart over several exchanges and months.
The next guy investing 10 million USD will probably not get half of what the first one got. And 10 million is not a terribly big amount for some of the hedge fund guys and big investors...

Time will tell.