It's very superficial and any of the girls who are remotely attractive get tons of messages, plus they have to be on edge for anything out of the ordinary.
The one thing I'll conceed to Pim Tool about online dating is that it can easily funnel all women to the top value men. That said, the most desirable men are going to exclude the unattractive women. Based on observing other people dating online, it seems like younger girls who are unattractive are aware that they can get older dudes who are probably desperate.
Pim Tool likes to rant about online dating, but the reality is that there are dudes that can only date this way.
The thing that concerns me though is that eventually more people are going to identify as "awkward" and will refuse to go on dates with anyone they meed IRL and feel like everyone should only contact them online. We already see this with irrational fears of talking on the phone where millennials and zoomers insist on communicating exclusively through texts.