Very unlikely your going to blow the buttons out, unless you put plastics ones in. I weigh 300 pounds and have had some pretty hard stops with no failures. Of course the problem you do have is the buttons get chewed up because of the sub standard material their made from and the extremely poor design of the "floating" system BD used.
In theory they are even more important on BDs because we already have undersized rotors for the weight of the bikes, anyone who has ever really opened their ride up and then tried to stop quickly can attest to this. The problem with BD floating rotors is poor design.