I personally do not see this drop as something of a problem, because as long as these institutional investors are here, they are literally powerful enough to cover all the drop with one single move. Let something like amazon buy another 1 billion dollars, even if that doesn't cover it (it won't) the news of it will create so much hype that there will be 5x more bought by retail investors just because of the news.
Yes, I agree that correction is normal for this highly volatile asset. Even though we now know that institutional investor are very supportive of bitcoin by investing billion of money, I am sure they will come out when their target is reached. Maybe they won't come out as easily as we thought, but we will definitely see that period come. It is true that Microstrategy has sparked other institutional investor to come to bitcoin, I am still very confident that more institution will enter after this.