It used to be a problem, but the quality of even cheap switches these days means we've had no reports of failures or collateral damage in systems where motor current passes through the switch.
In actual fact, most Receivers cannot source much more current than the switches are capable of passing anyway and if a situation arose where the current demand rose then the Receiver's short-circuit protection would operate.
Nevertheless, in the unlikely event of a switch failure, they are not exactly expensive items to replace.