For some reason yesterday's post didn't show up as a new message.
Note that there is nothing in that article to say that any land is being taken. It's about construction, the activists are using the word "annexation" but nothing says this isn't just infilling. If there was any actual border change the article would almost certainly have said so.
In practice it means Israel is less likely to give up the settlements--but that's meaningless as the chance of them giving them up was already basically zero. Israel was pressured into that once, it didn't help things. They're not going to make that mistake again.
So Israel can do "construction" on Palestinian land but Palestinians can't do construction on Palestinian land. Got it.
The cases that you are referring to is the common tactic of Palestinians doing construction on Israeli land, then going crying to the press when the inevitable happens.