Who told you a gooseneck adapter is the preferred option?
Walking around campgrounds, a traditional 5th wheel hitch is by far the most commonly used option. Maybe one in 20 use a gooseneck. Never seen a "gen y" hitch in real life. I had to look up what it was.
Or are you looking at youtube videos with people promoting gen y hitches. Take youtube channels with a huge grain of salt. Most review items... they get for free or are paid by the manufacture to test. Unsurprisingly, those tests almost always are glowing and positive.
Not saying it's a good or bad product but it's hardly representative of the standard.
Only thing to verify is get in writing from the trailer manufacturer that it won't void the warranty as it does create a longer lever arm on the trailer frame.