It's both true and untrue.
The Colt products are still firearms. They still function and hold up to firing.
The Rugers are just machines like the Colt and many of them still malfunction and break under hard usage.
If you're going to be doing a LOT of shooting, like 300+ rounds a month or what have you, and/or shooting standard power or heavier reloads, then the Ruger may be the better choice.
Rugers are one of the best choices, for the money, in the single action world if you're buying off the shelf and want a tough wheelgun.
I've seen Ruger old model Vaqueros (stronger still than the new Vaquero) at
amusement parks used daily that broke nearly every component that could break and some that weren't supposed to break. And they were shooting blanks.
I like Ruger and Colt. I especially like the Bisley-Vaquero and authentic SAA. Not trashing Ruger at all. Just go into it with a realistic mindset.
You'll need to beef up either choice for regular and sustained shooting with better basepins and other parts.
The short answer is: Yes, buy the Ruger.