You're moving the goal post here. The parent never mentioned anything about the Chinese models themselves being dangerous or harmful; that's a totally different topic.

The point they were making was that the most successful open models- those coming out of China- are made my companies that are using those open models to get exposure in Western markets. The goal is to undercut the Western dominant players, not out of any particular "open source" philosophy, so it wouldn't be wise to expect them to continue providing open models long term.