For me, complementary palettes are just fine. In years past, I’d have a go-to brow bone shade as a single, and I’d have no problem putting together a quad or small palette of go-to brow bone, transition, etc. type shades for my skin tone. Complementary palettes would offer more diversity then, since they wouldn’t have predetermined crease/transition shades that may or may not apply to my skin tone (or a wide variety of skin tones for that matter).
If I was looking specifically for a travel palette, something more standalone might be more important, but I’d still travel with my go-to quad/palette of shades so I think complementing still works for me. I like when a palette has a color story that makes sense; like it should still be cohesive/usable primarily on its own, just with me adding in shades like brow bone highlighter, transition shade, or a deepening shade (like a matte black).