If it was just two modern computers and transferring data between them, the floppy disk would have been dropped in a heartbeat. But it's the old computers still in the critical path that are holding everything back. And those are really hard to maintain. Last year we phased out a system that was dependent on computers from the mid-1990s, getting replacement parts was practically impossible, they mostly just don't exist. You'd buy old systems off ebay and hope that they had enough working parts to scavenge, and the right working parts.
EDIT: Light editing because I had some extra words.
There was a time when the company I was working for was selling service contracts for DEC TZ30 tape drives to DEC itself because their own internal service organization was unwilling or unable to support them.
The application was software distribution, most likely to customers they were contractually obligated to support, and no newer drives were able to write the required tape format, so upgrading to newer drives wasn't an option.