It's only a phrase I've used because an older generation of photographers on facebook groups have used it to belittle how I work; it's like somehow if you hold down your shutter long enough, composition and focus would magically fall into place. When compared to film wedding photography, it is of course very different, but from reading books on documentary/war photography where capturing humans was key, those guys often burned through film when they were in the moment.
I shoot up to about 4000 images at a wedding where a lot is going on. A large bulk of it is little pockets of the same scene.
I also (short) burst shoot the family photos. Again, old pros say you don't need to do that if you have 'good technique' for making people look at you and have your eyes open. The thing is, the old film pros weren't competing for attention with about 40 phone/ipad cameras. I have my own techniques for getting good family (in)formals.