Well not sure what would be my reaction to this news, but I feel not happy. It's good to see Bitcoin gets more adoption, but if it's centralized entities who acquire Bitcoin in large sum, that's could harm the market and the decentralization.
I don't see a reason why people get worried when centralised organisations are buying Bitcoin. This won't affect the decentralisation of bitcoin in any way. They also can't harm the market because it's not only one organisation that holds all the coins; it's a lot of organisations, so that makes it difficult for them to harm the market.
We can't decide who can and who can't hold bitcoin. If I had the means of buying a thousand bitcoin now, I would. If I had a company and that company had the means of buying ten thousand bitcoin, I would. I won't look at the fact that it's a centralised company and not buy.