As others have hinted at the weight capacity doesn't speak about utility or not for LF cameras. The weight capacity is specified with regards to the head mechanical construction not camera pictures quality. The weight limit speaks about what is mechanically acceptable for the head not what is the limit film format. Therefore a LF camera can or not be a bad idea as much as a MF equivalent weight-wise. If your LF camera is light enough to put on the tripod head it still doesn't mean it will feel stable enough there - the same is valid for any MF camera. Putting on the head a heavier load simply means the head mechanics will suffer - with all the possible consequences for camera stability.
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