"Retro" can mean different things in different context.  We use the word to refer to a better version of a really good thing from the past. 

The Ford Bronco was awesome in the 1970s and 80s.  The 2021 retro model is better in almost every way - safer, faster, more comfortable, more efficient, cheaper to maintain and drive, and actually cheaper to buy in adjusted dollars.  

We believe investing should follow the same rules.  New technology is awesome, and makes investing in solid, proven asset classes faster and more efficient, cheaper to manage, and just plain better.  If your current investments are not reflecting these evolutions, get out of them.