Yes, this is a transition that has been happening for the past several years - it is not something that happened over night. There was a mini-announcement a little over a year ago by GMAC to people in the GMAT industry including GMAT Pill
SC: More questions will have multiple answer choices that are gramatically correct—but ONLY one maintains the meaning of the original question.
The purpose of this gradual transition is to make it so that non-English natives are not at such a disadvantage. GMAC wants to rely less on idioms - and they figure the best way to do this is to focus more on meaning.
Remember the two important aspects of a sentence are structure and meaning. The structure might say that a particular phrase is supposed to modify a specific word - that's what it structurally says. But meaning-wise, it may not make sense. So a greater emphasis on meaning means you will see these kinds of sentences more often than you would have in the past.
But not to worry - this is not a really big deal for us since we already prep students with this in mind.
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