This actually sounds fair. Either you pay for their efforts towards development and maintenance, or make your own efforts.
The saddest thing here is that MinIO is apparently not important enough for the big names that use it to receive donations / sponsorship funds sufficient to continue as is :-/
The big names have their own storage solutions they are trying to sell (or quietly using internally). MinIO is at best, something they can't make use of, or at worst, competition.
