6 blocks or so in Bitcoin and 25 blocks or so in Ethereum are not comparable.
Each Bitcoin confirmation carries the weight of the most hash power, the most sunk equipment value, and the most censorship resistance through decentralization ever recorded in cryptocurrency history with longest 10 years of absolutely trustless distribution.
Ethereum is relatively insignificant hash power, insignificant energy use, insignificant general purpose hardware of GPU that can be resold after an attack. Most importantly Ethereum is simply not capable of finality being a prime example of easily reversing transactions, censoring users, and confiscating anybody’s coins all done by a central group of people who centrally printed virtually all (70%+) the stake and control the system. By design Ethereum requires absolute trust in a central entity, just so they could profit. The quality of developers in Ethereum is on par with so called developers of Bitconnect, dentalcoin, and other fake projects that threw away decentralization for centralized profit and centralized advantage. Infinite confirmations on Ethereum don’t provide any additional security since centralization is their by far weakest link. Less important hash power concerns are reserved for projects that actually meet the absolute basic requirements of decentralization like not premining the supply for yourself.
