Question for you: why do you suppose the manufacturers use pulsed triggers?
Could it have something to do with design efficiency?

Second, every RF and wireless remote use a pulse trigger from the microprocessor to cause a flip flip to change from one state to the other. You can use an SCR to latch on for a DC load but all it takes is a pulse to gate the SCR on, but you must then break the DC supply to stop conduction.

Using a flip flop is faster, cleaner, and allows use of wireless remotes. There is no sustained closure with a remote unless it is a old style, discrete component, hardwired pickle switch.