His source is baseless fud 💩
Nothing what he says is true and greatly exagerrated.
For instance the thing about bot numbers and marketing. If they counted bots in their marketing material the numbers would be bigger. There's also a bunch of context around the way bots work with this game that this person either doesn't understand or chooses to ignore because it doesn't fit his fud story.

Hint: Not a single truly decentralized blockchain game can ever get rid of bots. 99% will be crushed by bots. Splinterlands is the only game that designs bots into the economy such that they can live side-by-side with players and not break the game. This is a HUGE win for Splinterlands and not a con. I can't overstate how big of an competitive advantage Splinterlands has over everyone (especially Axie) because of the fact that they can handle the bots.

Take it from someone who runs 10k bots; the way the team has structured the economy I've been forced to keep reinvesting into the game to continue to derive value. The moment I stop and start siphoning value, I break my income streams and die off over time. No other game does this. The biggest issue in the Splinterlands community are paperhanded whiners like Jae here.