There's simple for the sake of being simple, and simple that takes away from potential.
One of my favorite homebrews is a study in simplicity. pilsner malt, a dash of Crystal 10, Cascade hops, at 60, 10 and 5. Ferment with WLP001 or WY1056, good to go.
Another favorite is far more complex - half a dozen different malts, 3 hop additions, then a year souring, with cherries, then rum-soaked oak. Very complex, but delicious.
Could that first beer be made more complicated? Sure, but to what cost?
Could the second be simpler? To get these results, probably not.
I guess my point is, that if you want simple, you can brew SMASHs and be as easy as you want, or if you want to experiment and go nuts, that's fine too. I enjoy the process of brewing, from coming up with a recipe, tweaking it as needed, brewing it and waiting for fermentation / conditioning (I don't really like cleaning up, though...
) IF a recipe or style demands simplicity, that's what it gets. If it needs to be more, it gets that too. There's more than one way to skin the proverbial cat. If someone wants to make a triple-dry hopped kettle sour oaked hibiscus dandelion Simon & Garfunkle blond stout, they're more than welcome to. Someone else who wants to do nothing more than SMASH pale ales is no more or no less a brewer than the other guy.