This happens in all versions I have been able to check in - CS5.5, CS6 & CC.
Repro:
Import any footage to a new project - any resolution or frame rate.
Create new composition from clip.
Type in "Crop" in effects search
Double click to load it.
Result is an effect called "Wigglerama" & "transform" gets loaded instead of the required "Crop" effect
See attached image below - cannot believe I never saw this before
What did I do wrong please?