I think it's up to debate with your DM if you can take more than one instance of this feat, that's why they didn't specify that you can, as they did for elemental adept, nor they prevented you to do so by specifying you couldn't.
They did specify that you can't, though. That's part of the general rules for Feats, so those that specify that you can are the exception.
PHB pg 165 said:You can take each feat only once, unless the feat's description says otherwise.
Edit: Ah, I waited until I had my book handy to look up the reference/make sure I wasn't misremembering something from earlier editions before I actually made the post, and I see I was quite soundly beaten to the punch.
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