I can imagine this is frustrating and have experienced people wanting to push the "latest trend". My usual way to approach this is to ask them to explain to me the _why_. Why is this new thing better? What specifically is it better at? How? What trade-offs does it make?

More often than not, they aren't able to properly articulate the why and the trade-offs involved. Sometimes they do fully understand the trade-offs and that leads to good discussions.