This is highly misleading IMO. The democratization narrative is a complete marketing ploy — anyone that understands how the SPAC structure works would not call it “democratic” in any sense of the term. Participants in the SPAC fund and buyers of the public market equity are two completely different parties. For one the funders of the SPAC get their capital back (plus interest) if the SPAC fails to find a target. But even when they find one, the funders get many sweeteners over and above the resulting equity shares. In some cases there are minimum payouts and all kinds of other things that create a two tiered system.
The SPAC “craze” can be boiled down to a few causes — overheated stock speculation that caused retail investors to put their money all over the board, and low interest rates that made this kind of risk free betting possible (the opportunity cost was very low when T-bills paid nothing). It was a way for companies to specifically and intentionally avoid public market regulations to sell to a perceived “dumb money” retail pool. There’s absolutely nothing democratic about it. Also why many of the companies using SPACs were “retail friendly” businesses like electric car companies that were perceived to be “exciting businesses” for retail buyers.