I find this whole line of thinking odd. First peoples preferences over technology change and pretty much everyones preferences or "passions" develop. Second, you dont need to be passionate about product to produce good work. You need not to hate it. You need to like the position and work you are doing, but that does not require passion for contracted web page for financial company (or whatever).

These are unbelievable fantasies. Where the time comes that another technology is a better fit is few years after when a.) team members might have changed preferences already multiple times b.) given average employee changing job once in 2 years your original team members left.

I think that hiring would is much better when companies hired less on applicant emotional state and more on calm rational decisions about work.