I didn't say it was a newish thing, just that it's proportionally more of a safety concern than it has been in the past.
I can't view the video at work, but my (usually fallible admittedly) memory is saying it was misty with the water hanging in the air, which was as much of a problem as the spray itself, possibly making it look worse to us looking from further away, but possibly a little better for the drivers.
Given the number of drivers making mistakes and hitting things (Hill span twice before he finally cocked it up once and for all, didn't he?) you could argue it was still the water which was the bigger problem. You don't get that so much now (on the wets), only when the weather deteriorates so much that it has to be stopped anyway (Nurburgring 2007, Montreal 2012).