Top comment doesn't say it's better. Just says it's a "workhorse".

The article itself doesn't say "it's better", basically just says "in this one specific benchmark it beat Claude with Claude code". Mind you with multimodality it Opus still beat GLM 5.2 very handily in that same benchmark.

I can't find any contradiction and I don't see anyone lying directly. At most they lead you to imply false things, but they're not untrue at a literal reading.