I don't buy it. I have a ton of epoxy experience though none in this application, so there is that. My experience with glueing stuff to steel is that it is not long term reliable. There is no chemical bond, which is more than possible when you make a composite bike from scratch, you can, and probably will in a production setting, ger a chemical bond. You can also make your attachments to have the correct surface area. You can choose your glue to be non-generic. Over time epoxy seems to peel off steel. Maybe this is due to some of the discussed factors, and also due to the expansion ratio of metal.

The thing is that while something may work, it is a big step from there to say that it is up to the job. Brazing deals with the basic forces, abuse, and all know environmental factors, and seems to have a significant level of redundancy also. I'm thinking a very light tap with a hammer would send a stop flying, and there are plenty of things that can have that effect in daily life.

Am I imagining it, or were stops one of many things that were banded in the old days. I remember when BOs were not standard, or only a few were standard, on average road bikes. OK, I don't actually remember the details that well...

Edit. There are all kinds of steel gluing aps that are reliable like the heads of golfclubs, hardware bonding on yachts, etc... I am talking here about surface mounts, where the glue is sheared, or under tension, and there are no fiber supports.