That's why their CEO said their Bitcoin decisions are based more on cost of capital and the company's balance sheet than on whether Bitcoin is $60k, $80k or $100k.
Of course, if you're looking at it strictly as a Bitcoin holder, it still looks like a bad deal: sell lower, buy higher, and you don't even buy back everything you sold, They sold 6,916 BTC and only bought 4,603 BTC back, so I wouldn't call it a brilliant Bitcoin trade, it's better understood as corporate financial management using Bitcoin as a treasury asset, and honestly, this is probably the interesting part of Strategy's model now: they are no longer saying Bitcoin can only go into the treasury, they are showing that, when necessary, Bitcoin can also come out of the treasury to solve a financial problem.
Sometimes, people think that way. They had a problem, and secondly too, they has an alternative option to solve the companies financial need, which was Bitcoin, and they did sell to solve the financial issues. At that point in time, Bitcoin came through for them, and it was great idea for them. It's there Bitcoin, and they decided how to use it. To me, it isn't a bad idea after all since they are still committed to buying and stacking Bitcoin as they can.
If you look at there buying point, you would notice that they are still all in for Bitcoin, been able to sell up to 6k+ and only rebought 4k+ and even in a higher amount. That means that they believe in the increasing power of Bitcoin and surely, if they have some coins, they would still reap it in the future. They are having Bitcoin and there business still running.