"Dig an adjacent grave". The only reference I can find to their work in the area mentions that they're demolishing the graveyard to build a park. And they've been demolishing graves for years, so this would be perfectly in line with past behaviour.
What sources are you looking at, out of interest? Because nothing I can see supports the "nothing to see here" position.
A few things before pulling up my browser history: first, I'm not claiming that they were there to dig up an adjacent grave, that was a hypothetical for comparison, and you've already doubled down on that not being an acceptable reason to remove her anyway, so that part of the argument is irrelevant anyway. Second, I'm not saying there's nothing to see here, I'm saying that almost everything Seanchaidh posts from Twitter is deceitful. It is well within reason to question the decision to develop the landscaping so close to graves for a walking path for tourists, it is reasonable to be angry that they started digging next to a historic cemetery without radaring the ground first, there is lots of reasonable criticism. "Ethnic cleansing of the dead" is not it. Shamelessly floating the implication that they destroyed the grave she was on really isn't it. If all you read is that tweet Seanchaidh posted, you'd be left believing that they were demolishing the cemetery and this woman was throwing herself in the way of the bulldozer coming for her sons grave. Some of the most reasonable users on this forum accepted that tweet as accurate. It's not "nothing to see here", but it is "quit your bs" (not directed at you, at the person posting fake nonsense from twitter).
But anyway, I googled the event and read these:
Municipality vehicles leave after Palestinians gather on reports of bones found at cemetery during demolition operation - Anadolu Ajansı
www.aa.com.tr
as well as some articles on older events and a Hamas press release that I'm not going to proliferate.
The graves that were disturbed were those of soldiers "hurriedly buried" in the cemetery following the ceasefire in 1967. "After Palestinians gathered on reports of bones found at the cemetery during the demolition operation, the municipality vehicles left the scene." The disturbed graves were unmarked graves in what otherwise appears to be a vacant lot in the middle of Jerusalem. When they encountered bones, people started protesting, which suggests that people in general didn't know before the work that there were bones there to dig up. I suspect some (likely not all) of the people planning the park knew there were people buried there, and if they didn't that's not an excuse, but that's still so very, very far removed from the implication they were assaulting a woman so that they could destroy her son's grave from underneath her.
Moral of the story: don't trust Seanchaidh twitter posts.