It's a somewhat harmful point of view in a way that it gives a learner an impression that hard and soft consonants are less important than other aspects of pronunciation. It's the same as telling a Japanese ESL learner that he should not bother learning to distinguish between R and L, because the difference is hard to explain and people would understand him anyway (from the context, if anything).
And they would. But does he really wants to speak with a cartoonish accent after putting so much effort into learning grammar and vocabulary??? Or people having to decipher his every word and constantly asking him to repeat yourself?
My personal point of view that there's no reason to postpone mastering correct pronunciation. Relearning it could be hell. And if you won't be able to pronounce some sounds from the start (maybe even for months), it's one more reason to start early.
An additional bonus of decent pronunciation is that it makes your language seem better than it is! It's a fact (really).