I think adding something for DoL/H to do inside Field Content is fine.

That being said, at the risk of grossly oversimplifying of what OP meant: don't make it fun for -all-. That's just impossible. Make it fun for people who likes Field Content---design it for them. Don't like essences? Too bad for you (general you). Oh you also don't like the added DoL/H endeavors inside? Then maybe leave it to us who actually enjoy it and accept the fact you're not going to get your shinies until you make the effort. Thanks.