all my previous boats were on tilt trailers but the 16' open tinnie I have now is on a non tilt bunk w/keel roller trailer. And I do miss the tilt, even tho my boat is liter than my other ones. The heavier the boat, the more usefull the tilt trailer was. ( well the heaviest boat I had was probably 1500 lbs total)
I can't figure why there are so few tilters available new now, but when I can find one I will swap it out.
As you can se from that video, the rollers support the keel and aligns the boat nicely, adjusting as it comes in, the transom still floats the rear of the boat, and I could always load by my self at any tide or wind conditions.
I never power load, always winch it up.
Just try it out, and be sure your chain at the tilt is set short enough so as not to let the rear cross bar of the trailer don't slam on the ramp/ground.
I couldn't tell from that vid if he had a preventer chain at the hinge
happy launching!