Stop twisting my words. Head to Toe SLP could be mistaken as Balenciaga, Bottega Veneta or even H&M and Zara. I'm not saying one is better than the other, I'm simply saying SLP is much easier to incorporate into any wardrobe than Rick (yeah, try incorporating his footwear into a Uniqlo fit, the entire fit can be passed off as Rick).
Rick creates clothes for his world. When I see anyone walking around in even one item by Rick - I immediately think, Ok, they're wearing Rick all the way. Unless I see Wyatt's and a specific flannel, SLP could be passed off as anything else being sold, with exceptional tailoring and details. That's the great thing about SLP IMO.
Beyond that, no one has to wear head to toe anything. Not sure where you even came up with that, unless YOU yourself are an obsessive compulsive that needs to only wear one designer aesthetic, in which case, I urge you to log off the internet and venture outside more and maybe find your own style.