wording
Fragment of a discussion from Comments:China to run low-cost maglevs by next year
Some maglev isn't high-speed (by rail standards). At high speeds, friction with the rails would be prohibitive, but at lower speeds it's still wasteful.
Well, I checked the sources and they do say 100km/h. I rather suspect the low speed is connected to the 'low-cost' part. You get what you pay for.