You are mistaking innovation for re-use. The former implies implementing either a new idea or reinventing an existing system to function entirely differently. All that changed about the leveling system is lower EXP totals. Making open world monsters actually hurt isn't innovation. If those monsters had mechanics beyond basic auto attacks and orange ground aoes, you could make a strong case for something new. These are just existing trash with stats scaled up significantly higher.
As would I. This preference does not make Eureka innovative though. Instead of going to Stone Vigil, we're pulling one or two mobs at a time in Eureka until something better spawns. Notorious Monsters are actually quite engaging but the trash monster spam isn't.
And people have offered feedback. Numerous posts have requested things such as quest chains, daily challenges and priority targets. One I particularly liked was bringing the hunt log back to provide players a direct goal. Take that concept and run with it; allowing people to spawn their own mini-NMs or something to that effect. Offering positive feedback towards something many people simply dislike helps no one. That doesn't mean they want Eureka abandoned wholesale. Just that they aren't happy with its current state. SE really only has themselves to blame, what with the constant hype, lackluster information and delays. This built up expectations they couldn't meet, thus people are upset.