Where does Dominica fit?
As said, it is very laid back. Diving is 'decent'. Of course having only been for 6 days of diving I surely didn't see all there is, but dove several of the DM's "favorites". Some sites are seasonal so we didn't go around to east side of the lower tip, which they do I think in September. There are some currents and unless the whole boat is very experienced they wont do any dives with current (for good and obvious reasons). You would have to check with Nature Dive but I would expect even if you are 2ppl and booked ahead they would go out. When I was there in June the cruise ships were not going, so there are very few tourists relative to it being "peak season", but we usually had ~8 divers on the boat. There were enough for nite dives when offered, tho we didn't do any as it would have been another drive from Roseau and a return driving at night. I think the cruise-ship/travel hiatus from Covid took a big financial toll and like a lot of the world I think it's gonna be a (long) while before things feel 'normal'.
For driving, it is opposite side from most of the world and rentals are almost manual, and there are some steep narrow roads and bumps and such. So somewhat of an adventurous spirit is needed and I doubt this will ever change. I never felt unsafe driving but once or twice thought "hope this turns out ok"... and it always did. Fear of the unknown, but no great reason to fear.
The hurricane did wipe out a lot, and places are still recovering, but it is SLOWWWWW since there is also no tourist money to help fund it. But the gov does seem to be doing all it can to repair things.
There are now NS flights from Miami (and to/from PR and I believe a couple other Carib islands) so that def helps, and a lot of the other divers were from FL coming in for 3-4 days. So what makes this less active than, for example, Honduras?? Sandy sunny beaches and more resorts and party scene... and that's (thankfully) not gonna change.
Diving is not going to change Dominica. It's there as an option. Nature Dive owners have been operating the site for decades - they are a lovely couple and love being there, but they ain't gettin' rich on it and there really isn't the activity for much more like some of the other carib diving destinations.
It is a lush jungle island. Eco tourism could take hold - there is a 'canyoneering' trip ppl loved, a few guided hikes, and some hot springs. Some investor could come in and make more jungle adventure stuff, but it is a very wet island so 1/2 the year you would do very little business and I just don't see it happening. It is what it is. The locals aren't impoverished, and seem to do just fine as-is (farming seems to be the major industry).