It is a double edged sword. On the positive side, it was set up by Whis that Gokus weakness is that he's to relaxed, and it comes to bite him in the ass during the movie, and it nearly gets him killed. I can appreciate that Toriyama is giving Goku a little character arch. I think it's neat that he's putting in that effort. On the negative side, the blast probably shouldn't have been able to hurt him, and Toriyama should have just had sorbet distract goku for a second, and Frieza hits him with a death beam. It doesn't bother me that much though, since I feel like that have been worse instances of writing in dbz, I think people think that this is a new low or something, but I disagree. I think there has been worse writing. At least there is a positive to it, or at least to me there is.
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You're Gonna Carry That Weight