IMO some of this institutions and governments hadn't realised the potential of bitcoin or were very sceptical about what bitcoin would become even in the last 15yrs, some may have had it figured out when to buy but the mere fact that bigger players has not been into bitcoin investment they pretend not to see the benefits of entering into bitcoin investment.
Bitcoin has been used in almost all countries of the world, because in all countries where Bitcoin is illegal, of course Bitcoin is used secretly in those countries, because you see that in the country where I live, Bitcoin is illegal, but we are using this Bitcoin secretly.
And of course this will or may cost them alot in a long while as MSTR has a better vision of bitcoin. However delay (procrastination) is always an enemy to success and it doesn't just apply to individuals including institutions and governments.
And MicroStrategy company has purchased a total of 444262 Bitcoins and has been able to deposit around 0.5 million Bitcoins. MicroStrategy company is basically holding Bitcoin in the DCA method because their Bitcoin investment is the highest in November and December.
And I think that in December they will be able to deposit more Bitcoins and deposit around half a million Bitcoins, I believe they will sell each of these Bitcoins for $1 million, in which they have taken measures to hold Bitcoin for the long term. So you save the only long-term and correct plan implemented by MicroStrategy company.
In fact no one can control Bitcoin so Bitcoin is traded in countries where Bitcoin is still illegal or people in those countries also exchange Bitcoin. As you mentioned bitcoin is illegal in your country yet people there are trading bitcoin. Bitcoin is traded in almost most countries of the world and most people know about Bitcoin and invest in Bitcoin.
Yes they are investing in DCA method but they are not only investing in November and December but also in other times of the year they are regularly investing in bitcoins. They bought more bitcoins in November than any other month. Moreover, it is not yet clear when they will sell bitcoins.