That makes me think of old classified advertisements in newspapers, in which one paid per word. One would often try to save money by getting rid of all of the unnecessary words, just including enough to get one's meaning across. It was not cost-effective to try to be grammatical. Sometimes, people would try to save too much money and not convey their meaning effectively.
So, instead of "needs to be recapped," "needs recapped" saves 50% of the cost, just as "needs restored" saves 50% of the cost of "needs to be restored." It seems unlikely that the meaning is lost when one does that.
The same thing happens with text messages, though the cost there is in how much trouble it is to type on a tiny touch screen, so there is a strong incentive to try to minimize unnecessary verbiage, regardless of whether the result is grammatical, as long as the meaning is conveyed.
Since texting is very commonly done, it is likely to cause the language to change.
Making the language more efficient does not seem, in itself, to be a bad thing at all.
(I wonder how many of us will rue the day we decided to post in this thread, when some grammar Nazi points out careless errors in some of our other posts. Online posting is curiously informal for something that is so permanent.)