I wouldn't do it if I were you. If the goal is diversification then after you bought bitcoin you should buy things that are not being affected by bitcoin price. It is the same arguments about buying altcoins, why buy something that could crash hard?
Not to mention that there is another scenario that happens to all big companies. If someone hacked MicroStrategy's cold storage and stole 80% of their total coins. The company's stock would tank hard.

As for the profit, I seriously doubt that this company's stock can keep up with bitcoin price rise. It may match it now or even be pumped higher at times, but in the long run it won't keep up.