They both suck because they're logos/liveries so obviously designed for web and digital use and not real world application. Simple single colour or two tone circular icons that can be easily rendered as vectors, up and downsized without losing detail, and easily used as favicons and app icons. Then they get slapped on a single tone tail with an often just eurowhite and single tone fuselage. No thought put into adapting the logos into real world use on the liveries.

I'm biased as a Kiwi, but Air New Zealand has done it well, I think. The koru has been the brand logo for decades and it has always lent itself well as an icon and scalable vector, but even now in the digital and web age they have kept a distinct and interesting livery with the silver fern and black that stretches down the back \~third of the aircraft. Qatar would be another example as the maroon ibex is a great icon, but the whole aircraft is used for the livery and it made more complex with the stripes behind the ibex and tone tone of the fuselage. Both liveries are relatively minimalist but neither are simple.