Nice to know my positions are instantly being converted to the most extreme form they could possibly be construed as. It's always fun to see that in the morning.
As always, it depends on the campaign. A Sidereal with Pattern Spider Touch will screw anyone without a Shaping defense. A fae... well, basically any fae ever is ten times more dangerous to someone without one. Heck, even Dragon-Bloods can do incredibly dangerous things with Shaping (see: Essence-Igniting Nerve Strike, Essence Disruption Attack). If you never meet those things, sure, you have no reason to care.
But if you do, the purchase of one (1) Charm with no prereqs and an ability requirement of 1? Is a steal to be able to say 'no' to all that.