There were many platforms with similar "crowdsourcing" based designs around 10-15 years ago. Most of them are gone now. A crowdsourcing platform built specifically with scientific research in mind is something I can't remember having seen before, however. The youtube clip OP posted may be unique in that sense.
Scientific research tends to be cost prohibitive and limited mainly to large corporate or educational institutions. The entry level pay for many scientists is around $30k/year which tends to encourage most students to become lawyers instead as lawyer starting pay is $100k/year.
There are DIY and hobbyist websites which do things similar to what OP's clip describes. Which could show that the concept is a viable one.
Example of potential viability: Hackaday offers $250,000 in prizes to inventors/engineers/diy hobbyists who design and build things which fit a certain theme:
https://hackaday.io/prize