If any of your laws have a crime that's corresponding punishment's are outline in the Quran or in Hadith such as stoning or beheading, in this context your considered a country that still practices Sharia law and/or a "Sharia law country". Your argument is that because every law followed in these countries isn't only based on this that it doesn't exist. The term here is being used colloquially, doctrine isn't used to outline every law in their countries but it is used to dole out particular cruel punishments for breaking certain laws.

Edit. "Particular, cruel"

Countries that use specific penalties corresponding to crimes outlined in the Quran and in Hadith are in this context considered a "Sharia law country". This isn't some set in stone rule to follow, I'm just explaining to you what the commenter you questioned was referring to.

Because they all allow for Hudub punishments based on Sharia law.

Saudi Arabia, Iran, Brunei, Afghanistan, Indonesia, Sudan, Pakistan, Nigeria and Qatar