The GP talked about "the given problem domains". One problem domain is simple, one-shot processing for plain old websites. Custom sign-up forms for stuff. Forms that email their data to some address. Homecooked personal-use search boxes that have "magic" functionality. All kinds of simple shit. These are deployed by FTP just fine.
Another problem domain is deploying something to virtually any cheap shared hosting provider. These very seldomly have e.g. ruby support. Sometimes, for all kinds of practical purposes, you don't get to choose.
The GP talked about "the given problem domains". One problem domain is simple, one-shot processing for plain old websites. Custom sign-up forms for stuff. Forms that email their data to some address. Homecooked personal-use search boxes that have "magic" functionality. All kinds of simple shit. These are deployed by FTP just fine.
Another problem domain is deploying something to virtually any cheap shared hosting provider. These very seldomly have e.g. ruby support. Sometimes, for all kinds of practical purposes, you don't get to choose.