It's quite funny these "....but wait, you still can import!" emails over the last day or so
I think anybody doing what these guys are suggesting is taking a risk. Trying to get a "pre Feb 1990 car" because that is when the annoucement was made.. but anything post Feb-90 would most likely be subject to refusal so don't get one of them.
Trying to exploit a loophole isn't the best way to be endeared with government departments, or trying to get out of things if they did decide "ok, screw all of you, we made the rule this date, we're not processing any new import approvals, 1989, 1990, or anything 15 year".
Although obviously the lawyers might have to duke it out, it wasn't as if there hasn't been enough "forewarning" by the issue. The whole thing on the DOTORS website about 1990 vehicles was to cover their asses.. Now they probably don't have to be so generous..
But anyhow, I got my car. It's quite nice I saved a packet, which is going into other aspects of the car over time (like the rb25 conversion). If you are considering it, don't dally.