Are the felt-and-leather pen cleaners offered at Manufactum suitable for cleaning high-quality gold nibs with platinum coating?

The classic pen cleaners are unsuitable for high-quality nibs because abrasion is too high and especially gold platings and platinum coatings can be worn off. They are also problematic for gold-plated stainless-steel nibs. As everyday care for high-quality nibs not to be recommended; rather usable as a nostalgic collector's piece or for simple school nibs.