One reason I am almost always coming to a stop, left foot down first is because I am a MSF coach. But also, over the years I have found it works really well and consistently for me, because it allows me to fine control the last few feet of the stop with the rear brake. This is especially helpful when carrying a passenger. for me anyway.
But I will use this tip with my MSF students when appropriate, to help them get more confident in those last few feet of a stop. I say, when appropriate, because for some newbies just getting the bike stopped and upright can be a challenge. Asking them to conciously think about a slight handlebar press during the stop is in some cases asking way too much.