Sorry, I realize I never elaborated on the results. Some people could do a reasonable job in 30 minutes, others would take 2 hours (but would be more thorough). Neither end of the spectrum seemed "Too long", and so we thought it is a reasonable ask. It takes the devs that inevitably have to look at this, and potentially run the applicants solution, a chunk of time as well, so it's in our interest to keep it simple.

I wasn't suggesting that we had existing devs do the take home, realize it took 30 hours, and then thought that was a reasonable request :D