No, I'm not the only one as people always come here saying they are using ocean forest and/or happy frog with added ferts, then pose the question "Why are my plants discolored and dying?"
FF makes Light Warrior soil to be used for small plants and seedlings. Ocean Forest is for the time when plants are larger. When you think plants need more nutrients, you transplant into a pot much larger with fresh soil. Just because Foxfarm makes a variety of fertilizers doesn't mean you always need to use it. Happy Frog in particular has developed a reputation for being a long-lasting soil. I've seen customers in hydro shops buy only that and swear by it, saying they don't really need much else. The problem is that if you're growing a lot of plants (or grow them pretty long and tall), you need a lot of soil. This is expensive, but the good news is doing so takes out a lot of the guess-work that people are always using.
Even on the Foxfarm website, the text says everything your plants need in one bag. I don't know why they make so many other fertilizers but I suspect it's to get money from people who don't know better. I'm seeing a lot of posts here where people are giving too much phosphorus. The biggest complaint years ago was pH. People would say their pH was off even though they hadn't tested. At least people have got off the pH bandwagon as I don't see that much anymore. However, there are many fertilizers in containers these days when compared to 15 years ago and no one has ever said these are necessary. Companies make a lot of money off of consumers that don't know better and buy products that aren't really necessary. The graphics on the containers work to get your attention... and your money.