First and foremost, there is nothing a grill can do to ribs that a roaster can't do better! By roaster is intended a very large pot, probably oblong to accommodate rack(s) of ribs, and a lid.
This said, it is completely true that a smoker1 does something that the roaster and oven cannot.
Here are excellent tips ordered in the way to cooks ribs, whether baby back, Louisville, spare or other.
I have made recipes from both these sets of notes, even side-by-side. I lean toward the first one which I tried to make on a bed of finely sliced cabbage, sliced onions and apples.2 I made the straight-into-the-oven recipe. Both worked, but I found the ends of the rack dried and inedible from the second recipe. I had to run the first recipe longer than the 2 hours suggested (my altitude or some other environmental factor?).
Don't lift the lid. If you open the lid, add 15 minutes. If you do, forget the thermometer; picking up the rack with tongs in its middle, if it droops over, or twisting a rib end frees it, it's done. If not, go 30 more minutes.
If you want "competition" ribs where the meat's not falling off the bone, subtract 30 minutes. However, your guests and children will not thank you. We're talking dinner here, not competitions.
1 See "Liquid smoke" below.
2 or fine grated wet cabbage? This produces nothing of value. Maybe sauerkraut is better if you like it. I think I'll just forego putting anything in the roaster except a bit of broth to keep everything moist.
This procedure doesn't result in fall-off-the-bone ribs, which may be what's wanted.
Note that these ribs aren't smoked. Using a smoker (I have a very nice one) is not, however, a panacea. The pitfalls (no pun intended) are many: drying out, over-cooking, etc. Using a kitchen oven, for ribs at least, is far simpler and safer. Liquid smoke comes in bottles and it is legitimate smoke dissolved in a liquid excipient. It can be applied to the ribs. However, you should be very careful not to overdo it (so, very small amounts in another liquid you're already adding (broth, apple juice, etc.) early in cooking. Also, it makes your kitchen and house reek of it which you may find intrusive and unpleasant.
The point is that it's a) possible and b) legitimate.