Nope, varies from company to company, runway to runway,what turn -off you want to make, runway conditions etc etc. It also depends whether the flight-ops management at the time are emphasising money saving on fuel or brake wear. Wouldn't have made much difference here anyway, they would still have stalled at idle thrust with 30 long before they got to the R/W.
In my opinion the aircraft is more speed-stable with 40 and a little less sensitive to pitch attitude, whilst also being less critical in the flare, thereby avoiding the ballooning new guys often end up with. I personally think the tiny extra bit of fuel burned is worth it, but there are of course other considerations such as flap-track wear and handling in limiting crosswinds to be thrown into the mix. Think you will see a fair mix of 30/40 in normal ops.