Countzero, does the Amiga floppy really have the technology of saying "ok.... I am not successfully magnetizing this disk so I better up my power to see if that works".
Nope.... I don't think you'll have that happen either. But, you'll get a lot more random track and sector errors. And you'll get a much shorter lifespan for the data. I used some HD disks on Amiga maybe 10 years ago. Almost all of those disks were unreadable within a year or two. Where as the DS/DD disks from 15+ years ago (stored in the same boxes) STILL have 90% or more readable.
Also, you only need the tape on a DS/DD disk to read it on a High Density drive. (If a high density drive detects the hole in the disk, it will try to read it as high density, and will not retry to read it as a low density after the high density read fails.)
