who's advising against tied quilts? i see posts all the time asking how- and advice- i never see anyone say ---not to.
if you want to tie your quilts do so-
the only thing that needs to be kept in mind is the batting used- if you use a batting that says it needs to be quilted every 2"-4" it is not a good batt for tied quilts- you need to use a batting that states it is a good choice for tied quilts- otherwise when the quilt is washed/dried --with time- you will have clumps of balled up batting- and empty areas.
other than batting choice there is no reason to not tie quilts if that is what you want to do-
and using flannel- or fleece instead of batting really works great for tied quilts