MUPTE is/was used to control the location in Eugene, where developers would build.  As the city rezones, (if they defeat the huge opposition to dense packing) more MUPTEs will be awarded to get developers to build in those areas.  (BTW - there are 15 "sub-areas", where the city could try to rezone.)

The people who enjoy great and affordable livability want to be left alone.  Its obvious they are not interested in the government rezoning their property, they'll never flip-flop on this.  Case in point, the S. Willamette and the four prominent surrounding neighborhood associations who all oppose the SW-SAZ.