Only eat on a schedule for two reasons: 1) your hunger signals are messed up and you overeat/binge and gain weight or 2) you're trying to bulk up and you're not hungry enough.

Other than that if you're able to maintain the health and fitness you desire with just waiting to you're hungry to eat, then I see no problem with that.

Lots of people (and especially those on PH) like to over analyze and worry about crazy levels of detail that actually don't matter (or matter very small compared to the effort they take). So often people will then think there's a crazy science to EVERYTHING, when there really isn't. Don't worry about schedules and timing, just eat when you're hungry.

I'm following the LRP and as I saw it, the principle was after breakfast only eat when/if you're hungry. As long as you're getting 100 g protein a day combined (with 50 at breakfast) you don't need to eat 3 full meals. Most days I skip lunch entirely and eat a sizeable dinner. If I get hungry in the afternoon I eat a small meal (we won't call it a snack) then cut down the size of my dinner. But once you've tamed the hunger beast, you don't need to eat 3 full meals if you don't want to.

If the only reason you are forcing yourself to eat with this schedule is to fix a problem (hunger) which is no longer an issue then it might not be necessary. There's certainly nothing wrong with seeing what happens if you don't eat. It's one of the difficulties of our modern lives - we can't necessarily all eat whenever we want. We need to plan, cook, eat to fit our schedule. But there's a number of ways that can be achieved. A big breakfast may see you through to an evening dinner. Or breakfast could be left until the middle of the day. You may find that just one missed or different meal in the week will make the others go down a lot easier. Or that more variety helps. There's a lot of details that can explored with any approach, but people find success with all of them. If you feel what you are doing is wrong, try something else that works for you better.

The real question here is why are you trying to eat to Jack Kruse's schedule? Is there something you want to change about yourself? Lose weight, etc? What are your goals?

Personally, my schedule is eat when I'm hungry. :) Unless there's some social reason to go off that schedule (dinner with friends, etc).