I'll give a real-world (although probably uncommon) example. I have a DirecTV HR-23 HD DVR. I have a B&K AVR. I have a Kuro monitor (KRP). Over the last little while DirecTV has rolled out 1080p24 movies. Initially they required the TV/AVR to support 1080p24 but when they went into production they had the DVR perform 2:3 pulldown to convert 1080p24 to 1080i60 if the display didn't do 24p. A few firmware releases in the past my AVR tickled a bug in the HD-23 that prevented 24p. In that case one should be able to use the inverse telecine in the Kuro to perfectly restore the 24p movie. Of course this doesn't apply to the statement "I don't like what my player does to movies on DVD when it tries to extract the original 24p source(s)" but it's not completely unreasonable to apply it to "I don't like inverse telecine".
Obviously I misunderstood.