I think his point was just that the amount of spam competing with financial transactions will increase due to the changes in v30 laying out the red carpet for spammers. 

Miners don’t care - they mine what’s most profitable for them and have unfortunately degraded into centralized short-term incentivized participants in the ecosystem. If  spam ever gets so bad that financial transactions are prohibitively expensive, that’s really bad for Bitcoin. Not everything can live on Layer 2 or sidechains - sometimes we need financial transactions on the base layer. 

Corporate miners are fine killing the goose that lays the golden eggs as long as they hit the quarterly earnings forecasts and the executives get their bonuses at the end of the year. They’ll transform into AI hosting companies if Bitcoin dies. 

That’s why node runners need to push back against this Core v30 nonsense and make Bitcoin about money again.