Why Was Team Builder Removed?

The new Dynamic Queue doesn't guarantee the champion you get to play or really guarantee the role you get to play. I can somewhat understand Solo Queue and Ranked modes in general since Dynamic Queue might have been able to replaced both of them at creation (although Solo Queue is probably still needed), but it didn't offer what Team Builder offered. I remember when Riot first released Team Builder and one of the things they essentially said was "Have you ever had those days when you are getting home and you really just wanna play that one champion in that one lane? Well now you can!" Not anymore. Now if you used to main a current FOTM champion, you might as well not try to main the champion anymore because they become so hard to be able to be played. Some people complained about Queue times in Team Builder, but I would much rather wait about 10 minutes to play the champion I want to play than wait about 2 hours of playing games with champions I at the time don't want to play.