That's misleading. If you factor in mining rewards, Bitcoin has much higher fees per transaction. A total of $18,000,000 more per day spent on validating Bitcoin transactions than what that website claims.
In the case of Bitcoin, mining rewards decline geometrically, at a rate of 50% every 4 years. Mining fees are what any cryptocurrency with an inflation rate that rapidly declines to zero/close-to-zero depends on for security on any appreciable time scale.
That's why I said that Ethereum's long-term security prospects are better. Its mining fees have exceeded Bitcoin's and with the multi-pronged efforts to further scale Ethereum - that are vastly more promising than Bitcoin's - there is a high likelihood of these fees further increasing their gap with Bitcoin's.
Ethereum's mining fees exceed Bitcoin's:
https://cryptofees.info/
That would mean it has better long-term security prospects than Bitcoin, as security is proportional the revenue earned by validators.