This strategy works because of social media. People go around social media to hype up the company so to a certain extent it is a giant pump and dump scheme but the pumping is done by the collective internet communities on social media.
Typical aspects of the company don't matter. What matters is being able to hype the company. That's why stuff like electric vehicle makers, fintech and clean energy is stuff that everyone focuses on. Right now the average joe strongly believes that electric cars and clean energy are the future so they're more likely to buy into these SPAC companies because they're sold as "the next big thing" even though the reality could be that they're very risky but no one cares about that long-term because we all dump the SPAC shares before the merger completes anyways.