Though, I'm not sure that changes in regulation is needed. As Norris said, teams can adjust height and reduce bouncing, but they will have to sacrisfy performance in this way.
I have a feeling that while indeed some of the cars do bounce badly, all this new drama about the health hazard may be triggered in order to:
* get some more attention on Hamilton, Mercedes and their sponsors
* if it succeeds, by chance, and a regulation is imposed, then they hope that all the cars may have to get a "safety margin" so the car is not bouncing and then maybe the Mercs will be on top again
I find pretty much laughable (in a pretty sad way) that when Hamilton has a problem, people should make regulations for him to be fine, but when regulations are to be made, he may not comply (see the piercing safety regulation and drama).