NO, a trailer hitch is NOT designed as a recovery point. It is designed to handle 10-15% of the trailer weight.
Sure for a quick little pull it is fine but if you are mired in mud, do it correctly, use the frame mounted recovery points.
BillieBob, I'm sure this is well meaning, and it seems to be oft repeated, but it's ENTIRELY incorrect.
To clarify, the bumper in question is directly mounted to the frame and well built, as are most 2" receiver hitches. It is in effect a front mounted receiver hitch.
This idea that a hitch is only designed to handle some small fraction of trailer weight is totally and completely false. Dynamic loads when towing often equal or exceed the actual ratings of the hitch by several times, both in tongue weight and in total capacity.
The lightest of pintle hitches are rated for a 20,000lb trailer and up to 5000lb of tongue weight. NO factory "frame mounted recovery point" is that strong. Even the forged tow hooks on a YJ are only rated at 10,000 lbs.
Finally, pulling from a reciever hitch (or solidly built bumper in this case) distributes the pull over both frame rails. This is always better for your vehicle than pulling from one rail, especially in hard pulls.
In general, with a solid receiver hitch or bumper mounted receiver, there should be no problem at all pulling from a forged pintle hitch properly pinned in. Your large dia Bubba Rope will likely appreciate the larger radius of the Pintle vs. a tow hook or shackle. I will agree that staying away from the ball type pintle for this sort of use is a very good idea.
That said, a pintle is a very HEAVY way to achieve a pull point unless it's all you have. I would recommend a straight 2" insert with a 3/4" shackle as a very good lightweight option. The shackle mounts that pin in are also far lighter than a pintle... You are not likely to do any damage to your rope with a shackle, and weight adds up, and is seldom helpful to the average wheeling or expo rig.
Good Luck!