We went through this exercise last year... We ended up choosing the Ultimate Cranker
package as the best value for our needs.
Why buy that when I already have the DeWalt 20 Volt tools onboard? Because they don't have enough torque to perform the job in question.
Short version of details:
As you know, torque is measured in force applied at a distance from center of rotation. [e.g., lets use inch-pounds in this case. in-lbs]
Lets assume the author of the article you linked meant inch-pounds because as written, pounds make no sense as pounds are not a measure of torque. [foot-pounds? inch-pounds? etc...]
From the article, the highest torque drill motor tested was 360 in-lbs [Remember we are taking this unconfirmed value from the article, and assuming the author meant in-lbs].
360 in-lbs/12 in = 30 ft-lbs max. So, if you never need to apply more than 30 pounds of force at the end of a 12" long winch handle to accomplish what you want to do, this drill motor is marginal at best.
[Besides, by the time you spend US$90 on the stainless steel winch adapter, you are almost halfway to the cost of the way superior Milwaukee package linked above... ]
The Milwaukee drill motor
cranks out 3x that much torque capacity: 1081 in-lbs [90 ft-lbs] i.e., equivalent to 90 lbs of force at the end of your 12" winch handle cranking the winch...
comes in at 1150 in-lbs [96ft-lbs].
Why did we choose the Milwaukee drill over the Winchrite?
For one, it was about 25% cheaper at the time.
And the drill is also a drill- with interchangable batteries [We have 2; The Winchrite has to be plugged in to charge the unit possibly part way through a day's work... And what do we do when the battery needs replacing and they cannot ship us a Lithium battery via air because of our remote location?]
If you are interested in reading more details about our reasoning, see the portion of our boat upgrades post from last year
[about halfway down that page...] that discusses why we chose the Ultimate Cranker as our solution.
It is a beast by-the-way... It is also our back-up in case the electric motor on our windlass ever fails...
In hopes this helps explain why the smaller drill motors will not be adequate for larger winch loads...
PS: If you do go with the Milwaukee, be sure to get the newer M28 28 volt lithium batteries [which superceed the V28...] and get the stainless steel winch adapter that replaces the chuck instead of a winch bit you place in the chuck. Why? For two reasons: It makes a shorter form factor to the winch, and it won't unscrew under load in reverse like a chuck can...