OnAir Service on Wataniya Airways

Awesome service from Wataniya Airways. I was very impressed when I used it on my flight to Jordan last month. Why haven't other airlines started this?

What's weird is I found a press release dating to 2008 saying that Jazeera Airways was launching this service back then and I've yet to see it on any of their flights. What's even weirder is that OnAir lists a whole bunch of Middle East carriers with this service and not one of them is advertising it properly, except for Wataniya Airways.