Scopes that have an integrated rail for mounting have several advantages.
First is mounting. There are no rings required. This means one less point of failure. Normal rifle has the action, scope base, rings then the scope. The integrated rail removes the rings from the equation.
Plus the scope is already level. Forget about having those PITA scope leveling magnets. Not to mention if you have to make an eye relief adjustment and now you are starting over.
It takes me about 15 minutes to mount an integrated rail scope vs 45 minutes to an hour for a traditional scope to get things to my level of perfection.
Not sure if there is a difference in weight for the those counting ounces and grams. Probably a push for most people who aren’t sheep hunting.
Sleeker design. Beauty is in the eye of the beholder, and I like it. But I also understand that it’s not for everyone.
Integrated rail scopes are more popular in Europe than here in the US, but the advantages are clear. The mounts are also typically European and of exceptional quality. I have three different brands of mounts and all lock up like a bank vault.
I see more advantages to this design than a traditional scope and will sacrifice the traditional look and style of the rings for them. YMMV.