Problems with Speed/Duration and Time Remapping

When is Adobe going to fix the bug that messes up everything with any clip where you alter the time of the clip (either through Time Remapping or Speed/Duration)??

It's unfathomably annoying and detrimental to the workflow and efficiency of the editing!

Yes I know I can nest the clip, but I shouldn't have to do that!

Also, when I for other reasons already have a clip nested, maybe a clip that has been chopped up in a little sequence and I want to be able to control it as a single clip, then I will have to nest the nested sequence and nest that again and again and again - and then it becomes a hassle keeping track of all the nested sequences that now are popping up like mushrooms in an autumn forest in my project window.

Why isn't this already fixed?