I don't think so, because the guidelines for CPR are formally published every few years, and the medical industry knows who does that, and it's accompanied by lengthy explanations of the changes, and so forth; it's pretty much as official as anything in medicine gets. But there isn't the same sort of thing for tourniquets. What there is, are US military guidelines that say that for military purposes, slap on a tourniquet and keep fighting, or slap one on someone else and keep fighting. And that's useful because what with body armor and all, extremity injuries have become a leading cause of death in combat. Some people think those guidelines directly translate to civilian use of tourniquets for any kind of scary bleeding, but in my view it doesn't. There are some enthusiastic people who fantasize about being heroes and still want to play army, will only buy equipment that has molle straps, and endlessly dream of glory, and think that the military's TCCC guidelines are the bible for first aid everywhere--next, they'll be wanting underwater chest decompression needles. But I digress, sorry. What has been going on in recent years are civilian Stop the Bleed programs based on military practice, that emphasize tourniquets as something that can be used after all despite their previously having fallen out of favor, but only after direct pressure fails. One thing perhaps making that less of a concern now is the availability of decent commercial tourniquets, as opposed to electrical cords or trouser belts. However, since it's easily possible to go a lifetime in the US without ever seeing a situation where a tourniquet is necessary, but it isn't possible to do that without having lots of opportunities to stop bleeding by direct pressure, I'm not entirely enamored with the idea that people could be misunderstanding the hype and jumping to tourniquets as a first intervention, instead of being used only if direct pressure doesn't work. But perhaps the emphasis on tourniquets in Stop the Bleed programs is like CPR training in a way: what gets taught now for bystander CPR isn't actually techniques for doing the most effective resuscitation. They are simplified techniques designed to get closer to being idiot proof, on the assumption that something is better than nothing, and medical perfection is too much to expect of the average bystander. Hence, the current simplification of CPR. Similarly, what with cell phones everywhere, a tourniquet in a trauma kit on the wall next to an AED probably won't do too much damage before someone can be taken to real care. Hopefully people will grab it for massive bleeding, and not for normal bleeding. What's really a shame is that it seems like the perceived need for Stop the Bleed comes in the wake of 9/11, and various mass shootings, and the need to be prepared for more of the same. Not so fun a world to live in. Of course, having seen boat prop injury, we have our own icky possibilities to deal with anyway. If you're curious about new things in first aid, look at hemostatic dressings.
