Past tense more suited than present perfect in this sentence?
What I read was this: "Grand Theft Auto V's success over the past month has been huge, but according to Guinness, it's also been groundbreaking." I find this sentence to be somewhat troubling, grammar-wise. Since the time of the success is limited in the sentence to the past month, shouldn't it have used the past tense as opposed to the present perfect, as follows: "Grand Theft Auto V's success over the past month WAS huge, but according to Guinness, it WAS also groundbreaking." Thoughts? Who is wrong? Why? Thanks.
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