Many projects do not make sense, but most importantly, they can not have a real product, that is they are meaningless! But there are very interesting ones, which show all the hopes, as a rule, they come out with the original product and simply collect it for its development.
If you know how to avoid useless projects you wont have any problem or whatsoever, i know real projects with real products do fails but the failure will be limited unlike when choosing projects with no research experience,if you come across any project thats not making sense just stay away from them