hrmmm..fairly new to LFS, but I don´t think it´s about holding off progress...this was an incompatible patch, 2 different (incompatible) kind of clients and servers..
IMHO some people would like the "latest version"...others will prefer the "stable version" ..server owners would choose the version they wanted, but AFAI remember..we could see all servers..
don´t know if it happened with S1=>S2 or another versions...just know what happened from Sep06 to date...anyways waiting for X