The key to greatness of Webley or Enfield revolvers are .38/200 cartridge (easy to shoot for just about anyone which was great because average British officer wasn't used to shooting handguns), ease of relading plus very good iron sights. Just look how much better sights are than those found on our period correct 1911s.
The Enfield and Webley .38/200s were not great revolvers.* No one has ever considered them as such. At the time, they were considered fairly impotent, especially for a pistol of their size and weight. A big part of the reason for that was their ammunition. The parent cartridge, the 38 S&W, was never considered suitable for anything but small pocket revolvers in the United States. British soldiers loved getting their hands on Beretta 1934s, which offered at least as much power in a far more convenient package.
Giving the Enfield .380 a 200 grain bullet, based on the (apparently) unsubstantiated theory that such a bullet
might tumble on impact, and that tumbling
might give it decent stopping power, did nothing for it, because it never saw service with that ammunition. The actual 178 grain bullets had a dismal reputation, as far as I have read. It is noteworthy that no one in the past 75 years went down the very-slow-very-long bullet = tumbling = stopping power road again.
As far as I know, 38 S&W is not available with the kind of pistol bullets that have actually been shown, in reality, to increase stopping power: high velocity expanding (hollow point, usually) bullets. Saying that a cartridge will stop well with "good shot placement" is meaningless. Any cartridge will stop well if the assailant is shot in the eye, and many will do OK if the bullet strikes the head or the heart. So what? What is wanted is a cartridge that will work well even under conditions that don't allow such accuracy.
I like Webleys and Enfields. I am glad that historically accurate ammunition is available for them. Heck, maybe somebody will actually check out that tumbling stuff. But they weren't that great at the time of their manufacture, and nothing has happened since (like the development of better ammo for them) to make them any better.
*I like top breaks in general, and Webleys in particular. But anyone who thinks of the Mark IV or the Enfield 380 as great
designs should check out Stuart Mowbray's book on the dis-assembly of military pistols.