You're actually being too kind. The only three "recommended" causes to give money to are "research organizations like the unusual ones we're involved with". Everything else, from global health to climate change is lower priority they'd caution you to only "sometimes" give money to.
This isn't research, it's a thinly disguised and exceptionally cynical fundraising pitch.
Which is a shame, because I actually really like the basic idea behind 8000hours