I believe you've got several factors to consider that go beyond what Ford has in their towing guide....
1. The trailer, as you say, has a GVWR of 4400 pounds. That means somewhere around 440-660 pounds (10-15% of total trailer weight)
2. The W/D hitch you got in the package is likely "overkill" for your needs.
3. Ford says "no W/D needed for up to 750 pounds tongue weight/7500 pounds total trailer weight"...
4. Ford's trailer guide recommendations ARE NOT CALCULATED USING TRAVEL TRAILERS. They are calculated using SAE test procedures which are based on a flatbed trailer with concrete ballast which is adjustable to obtain specific trailer weight and specific tongue weight. Then testing includes accelleration, decellaration, braking (with/without trailer brake assist) and some "g force curves, maneuvering testing"... The SAE tests do not include any "large sidewall trailer towing"...
5. RV trailer towing is a "different situation" from the SAE process that establishes the maximum trailer weights for the vehicle.
6. While you "may not need W/D assist" based on "max trailer weight per SAE tests" those tests do not consider factors such as sway induced by sidewinds on a travel trailer, controlling "bow wave forces" that you will encounter when passing or being passed by semi trucks, large busses/motorhomes and other similar vehicles. Nor does the SAE testing consider how those forces affect a single axle trailer that weighs as much as the tow vehicle you're driving.
7. When towing a 4400 pound SINGLE AXLE large sidewall trailer with a 4600 pound tow vehicle, you will experience sway that you need to counter to maintain control of your rig. In some conditions, that sway can adversely affect safety for you and others who share the road.
IMO, Ford may be correct in stating that no W/D hitch is required, but you will need to address sway control (above and beyond the sway control assist provided by your tow vehicle braking system).
Also, IMO, your rig will tow better and provide a significantly better "driver experience" if you do have a quality W/D hitch with sway control. I'd look at the Equalizer 4 point sway control W/D hitch system. I would also recommend that you consider the 600/6000 pound pound hitch system.
I do believe that without such a hitch, the first time you get your rig up to about 65 or 70 MPH and pull into the left lane to pass a 18 wheeler going 55 or 60 MPH, you'll stop at the next rest area and after "relieving yourself and changing underwear" you'll be on the internet, searching for this thread to see what hitch did he say I needed.....
But, to go back to the hitch you got with the purchase, I'd say that hitch is "overkill and much more than you need". If it's a "sway control hitch" you may be able to buy more flexible bars for that hitch head. If it's one of the brands that does not offer "multiple choices in W/D bars" then you might want to consider selling it and buying a lighter 600/6000 pound hitch.
But, I would not recommend towing a "single axle, large sidewall RV type trailer" that weighs as much as the tow vehicle without adequate W/D and sway control.
ADDED: It appears that you asked this same question on 2/27/24 in a thread located at:
https://www.keystoneforums.com/forum...ad.php?t=56974 Has anything changed from that time until now ??? Additionally, the hitch was identified in that thread as a "Haul Master 10K" which is a "round bar, chain link hitch with no sway control". Is this the hitch you are still asking about? In the past month, have you towed the trailer using that hitch and without using that hitch as a comparison?