Maybe, but RCI only switched to nightly escargots later in 2010... In 2000-x escargot was only offered during the first formal night, then Celebrity started offering nightly and then Royal switched, but it was still not offered on all nights.
This is why I am saying that people think that something was always classic, but it was not. I can not say when it started being offered on constant basis. Till 2016 we only had 5 cruises with Royal. Splendor 2004, Explorer 2007, 2009, 2010 and Brilliance 2013 and escargot was almost like a lobster. Once a cruise.