You'll see people running rubico instead of rubico prime for eidolons (this is how bad this idea is). This will switch the meta to base weapons and then those rivens will get nerfed. Then the noobies will get nothing but crap when they start their riven collection. You'll be furthering the divide between new players and veterans. This won't crash the riven market, this will make it worse with more people hunting the same rivens for basic weapons instead of searching for new ones. How about capping rivens and getting rid of the rng rolls on them and letting us toy with them to find our own niches instead of nerfing primes and other variants across the board and making it hell for anyone who likes a certain weapon that becomes popular out of nowhere b/c some meta boi made a video showing how broken it is?