I still use frog lube too, but only as a general cleaner and long term storage preservative. It is good for cleaning carbon with a brush in the bore and cleaning all metal parts. All friction surfaces get wiped off and now I use the breakthrough clean oil and grease for the moving parts depending on outside temp and what the part does.
The reason why frog lube isn't good for moving parts, especially in cold weather is that people don't wipe it off after they apply it and it gums up. If you wipe it off as per the instructions, it's fine. I just switched to the breakthrough oil so that I could have a nice film of lube present on the moving parts even in cold weather.
The reason why I think frog lube is still great for long term storage is the fact that it gums up! Thus when liberally applied to the entire gun, it stays put and gets sticky creating a great protective coating like cosmoline.