I doubt that there will ever be a "one size fits all" device. It´s always a balance act between size, weight, functions (I/Os), features etc.
If someone wants/needs a super robust floorboard for gigs in purgatory, I don´t think that a floor profiler (!) is the perfect device to go with. I guess that the idea behind the QC is much more to provide a super portable & lightweight device which enables musicians and studio professionals to recreate AND create sounds with ease everywhere they go (1.6KG vs 5 KG (Kemper)). At the same time it wants to be a device for home & studio usage which even can be used in live environments as well if needed.
Today every serious recording studio/producer has a KPA.It is studio standard like the U87 or the NS10.
So..all you need is a USB stick..