Taking risks is fine and can win you some games, however the current meta on both SEA and NA servers is quite aggressive, you'll probably come across an aggressive player over a macro player 80% of the time, these builds are tailored towards being safe because of that, meaning you'll have a higher win %. Sure you might get behind against a macro player, however you will almost always be ahead against an aggressive one.
i definately agree that the meta is quite aggro at the moment and it is very important to sacrifice extra economy in order to metagame your opponent (e.g double cloak banshee but delay 3rd cc so can hold roach/roach bane timings more easily).
But it is also important to remember the sheer importance of cutting as many corners as you can. Cutting corners such as not getting a bunker tvp and cutting corners like going for a fast 3cc can not only give you a huge economic edge over your opponent, but with good scouting you can often get away with cutting such corners.
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