because it was slow
as an ex Coho Data employee I can tell you that CD had a few short comings but the primary one that I saw/experience was that it was based on a distributed file system that added unnecessary latency into the storage stack that was a hybrid and then an all flash system. so even though they had an all flash box it was still slower than other hybrids and legacy all disks arrays on the market, how can you compete like that...