They have considered Bitcoin as "The end game" so they have never stopped their accumulation and recent months, they have been actually boosting their accumulation than past years. It has not only created hype and FOMO effects but also made Bitcoin more scarce as well as harder for other investors to purchase from old supply to new supply from new found blocks and their block rewards.
They will not care too much about other things because for bitcoin maximalists as Saylor shows, they have actually answered with their treatment of bitcoin so that there will be no doubt whatsoever for them in adopting bitcoin including to buy in a considerable amount whenever they have the opportunity and have money to buy so that in the end their adoption will continue as long as the belief is still formed and maybe even greater in the amount of purchase than before.
They will also not care whether this will give rise to the fomo effect or not because things like this will not affect their intention in the purchase because what is thought from the beginning is only one, namely how they get more bitcoin so that regardless of what they do it raises some hype or even fomo they will also not think too much about it because it is not too important for them to notice.