(2017), according to https://eu.usatoday.com/story/money/2017/09/26/velcros-video... They're trying to avoid genericide. I think if they didn't do this, they could actually lose the trademark .
I mean in most cases where a term becomes "generic" it has been long time generic before at some point someone bothers to make a study/lawsuit which declares it as generic as result.
For example pretty much everyone I know uses Lego as a generic term and knows about not Lego produced bricks. Currently Lego still managed to defend the trademark but IMHO it's just a matter of time until it becomes generic because it already defacto is and the only reason they still avoid it becoming generic is protectionism.