doubt that...
testing is a tedious business. you spend hours testing stuff, collect screenshots etc for days / weeks (sometimes months), think "okay, time to publish a *comprehensive* bug report", map gets fixed (or not -> see Whiteout...), then you just play a regular match on the new "fixed" version and find like 213213213 stuck spots / crap collisions / glitch nuke spots that you never noticed before it's too often 3 steps ahead, but 5 steps back..