did you use standard store yeast or a artisan type culture
I used specialty yeast "SAF Instant Gold", but any good instant dry yeast would work.
I have a culture on hand I first made about 6 months ago, and I'm sure it would be very good, but the intent of the formulas originator was to make a good product quickly. That's harder than one might think because the taste and structure is improved over time whether using yeast or a "sourdough" culture.
In this case a high proportion of water to flour created a dough which allowed for the open crumb you see and can be done in 5 hours or so from start to finish. The problem is that this is essentially kneading pancake batter. Doing it by hand isn't possible, so in a Kitchenaid stand mixer we're talking mixing the ingredients well for a minute, then a 10 minute rest to allow the flour to fully hydrate, then a half hour or so of beating at top speed.
Others seem to think well of this particular bread, so that gave me a motivation to try it. Further I used a Bosch Universal Plus mixer which many thought not good for a very wet dough, and I'd agree, except it occurred to me to use the cookie dough paddles and the scraper attachment. I like to experiment.
I suppose I got lucky because rarely does something new work well the first try.
In any case, if you have a good stand mixer I would highly recommend giving it a try.