I was going based on my old vs. Current schedule. I used to train mondays and Thursdays from 7 til either 11 or 12. (On top of 2 hours fencing and the 15 minutes a day that I always do).Who has time to train 5 hours/day? Going out on a limb here, but I would guess that you would be lucky to find (in the US at least), one martial artist in 10,000 that actually trains on any kind of regular basis 5 hours or more/day.
Nowadays I train roughly 3 days a week, depending on when I'm free, and only stay for an hour each class.
I feel like I improved a lot more during that first schedule, but I also ended up burning out at a point which I think was combining it with fencing two hours a day, and a bunch of other life shtuff going on.