That’s an interesting idea, and I think it would be cool to have no CG anything except for the miniature sets, however it now makes the most CG part of the whole sequence the Speeder itself, which kind-of gives it away as a bad CG model, so there has to be a balance between what to keep and to remove.
I always found the Mos Eisley sequence so difficult to balance because the original 1977 footage is so underwhelming and the 1997 SE footage so in-your-face that I find it hard to strike the perfect medium between the two that still incorporates some of the elements of both to make Mos Eisley both being a backwater port and also expansive like in the wide shots.
I don’t really find alot of them intrusive unless it’s very in your face since it somewhat conditions you to help with the CGI later in the film during the Battle of Yavin.