That RFE is specifically about having monsters that fight bare-handed. This is more about the inventory itself. I don't see anyone who has posted a comment regarding monsters fighting bare-handed, except mine... and mine was more all-encompassing, being about the inventory itself, with bare-handedness arising as a special case.
Anyway, as an extension to my idea, I'd suggest doing a similar thing with armour, too - that is, have a series of "rolls" to decide the quality of the armour that gets generated, if any is generated at all. For this, I'd have the dice set a little more generous, with, say, 128 rather than 256 possible values, and allowing a zero, one, or two, with the lower numbers producing more items of armour (that is, a roll of zero might allow for both a helmet and a boots, as well as upgrading rags to leather armour).
In this case, if the number of rolls for a goblin chieftain were around 128, then there'd be over 95% chance that armour is generated on the chieftain, with a 64% chance of at least one zero (meaning multiple armour items).
Also, in both cases, perhaps if the highly improbable happens, and, say, at least 20 zeroes get generated for either armour or weapon (not both combined), then it could actually generate an artifact of the appropriate type. To make the point of why this is a reasonable condition, consider that, on the goblin chieftain with N=512 for weapon, the probability that at least 12 zeroes are generated from that 512 is just 0.0001247% - that is, it is expected that you'd see one artifact-wielding goblin chieftain from over 800,000 of them, if at danger level 1, if the condition was only 12 zeroes, not 20 of them. The chances would be slightly higher as danger level increases, of course, but you'd still be looking at a vanishingly small chance, and that's on relatively rare monsters - the more common scavengers, etc, wouldn't even be capable of generating that many zeroes to begin with (from only 3 rolls, you can't get over 20 zeroes, after all), except on very high danger levels.