Any opinion can change over time. Some time ago there was a vote, and they voted against it. But what’s stopping them from holding another meeting and voting in favor, if global policy trends create conditions where it becomes more profitable to put Bitcoin on their balance sheet.Any entrepreneur is interested in profit, and they are definitely no exception.
Microsoft shareholders meet once in a year. Maybe the issue of using Bitcoin as a hedge against inflation might come up in their next meeting. These investors are concerned about the volatility of Bitcoin and want Microsoft funds to be channeled to more stable assets. Regardless of how profitable Bitcoin might be, it's not everyone or every company that will want to invest in it. There are various assets that are viable and we shouldn't think that people are financially dumb because they don't want to buy Bitcoin.