They weren't really in the first place - several industrial OEMs, most notably Zippy, never really adopted the 240VA requirement in the first place. They had some models that conformed to it, and some that didn't... both before and after the 240VA limit was imposed. It was just business as usual for them.
PC P&C actually tried on the 240VA limit for everything above the old 510W before realizing the SSA spec wasn't right for home computers and going to single 12V rather than make the rail distribution make sense.
Only up until you realize it's the same sort of idea used by your household breaker box.