My
parents old house actually had a low-volume flusher. I think the 5-6 flushes is an exaggeration. Yes, it did not do it's job for
large dumps with one
flush but it did the vast majority of the time. On occasion I had to flush a 2nd time but rarely if ever a 3rd time
Anything that uses less resources with minimum of disruption is a good thing. Maybe the toilet should use 50 percent instead of 33 percent water. Ditto for the shower heads.
I'm starting to see traffic lights that are using LEDs instead of bulbs. I think that's awesome as they consume less electricity and are still very bright, if not brighter.