They can, with one honest caveat. The format thrives on instant recognition: a question about something people already feel, like prices, habits or daily annoyances. Apps and services that tap a frustration everyone recognises give the street plenty to react to.
Where the format is weakest is products that need a long explanation before anyone can have an opinion. In those cases the interviews become setup instead of reaction, and other creative formats will usually earn their place in the mix first.
