I can't say I'm surprised. citra is much more efficient in terms of imparting hop flavor and aroma. I'm actually surprised that cascade was still the most widely grown and used. I pretty much never use it now.
I recently used it for old times sake and I enjoy the beer but you need a LOT of cascade to get a good hop bunch, IMO.
As for Citra, I just had 2 beers from Hill Farmstead that use Citra and Simcoe and one got Mosaic and one got Motueka and I have to say they were great. Those are 2 combinations I will be trying as they were not overpowering and just worked really well.