If that is true, DeFi is like a sandbox game, with a very limited amount of players actually playing. Observing this from outside the crypto bubble it´s concerning that DeFi, while a good idea and worth investing, has such a small holders community.
Could that be a problem in the long run?
For me, DeFi is nothing else than ICO 2.0. So it is possible to learn from the experience of the ICO hypes of 2017 and 2018 and transfer this to DeFi to a large extent. At that time it was also the case that the very largest part of the ICO project was in the hands of only a few. Only a small part was really sold to small investors and given as bounties. This pushed up the price and kept it high for a while. After the peak of the ICO hype had been reached and it was clear to most that this would no longer work well, the few then dumped their shares, which then led to the enormous losses in value and for many such projects virtually the downfall. The same will happen when the DeFi bubble will burst sooner or later. Maybe not as blatant as three years ago, but similar.