Is the snoo bad for development ?

I’m feeling guilty about using the snoo as I’ve read it that it artificially soothes babies when they cry / need a cuddle / feed instead of caregivers meeting their needs! Our EBF woke up only once or twice a night from around 3 months and my health visitor seemed shocked by this so it obviously is effective at soothing babies back to sleep but is this actually a good thing?? Is it going to cause attachment issues further down the line??