This is driving me nuts! I stopped using the search bar, because i always loose events i deleted accidentally, because i wanted to delete search entries that already lost the focus. Until i notice my fault, i already did a bunch of other things and i have to fiddle around with the history. This is "really" annoying.
I am a UAD user, which means i have many plugins i cant actually use because they are not licensed, but UAD always shows all of them (which is an annoying behavior itself...), but i know the name of the plugins i purchased, so a search bar is very useful, but at this state it is making more trouble than helping. It should at least keep the focus until the user hits enter. I don't care, if the search is dynamically refreshed after each key. Just query the search after hitting enter would be feasible.