It's not great, but it's also not unheard of. Tape capacities are often quoted at double the actual storage space, with fine print that says "assuming 50% compr

It's not great, but it's also not unheard of. Tape capacities are often quoted at double the actual storage space, with fine print that says "assuming 50% compression". Also, if compression makes IOPs faster or reduces wear on SSDs, people might not complain so much.