I don't think it's foolish at all.
For me, the goal is to get to get to a point where I don't have to actively manage the big D, in the sense of doing something different, irksome, annoying, unpleasant, un-beneficial, whatever every day. If that involves taking meds which don't give me any side-effects, it's fine. I don't see any particularly benefit in not taking meds if they're doing me good & no harm, and I certainly wouldn't think of myself as a "better diabetic" or placed higher on some pathetic totem-pole if I could.
At the moment I'm doing a little experiment to see what happens if I drop the Metformin. I'm doing this because of research that suggests that sometimes and for some people it can interfere with various benefits of exercise, and perhaps also increase post-exercise fatigue from lactic acid etc. Balancing that, Met has numerous potential anti-oxidant and anti-inflammatory benefits, beyond BG control. (I don't have any gastric probs with Metf.)
So it's a balancing act between different factors: what happens to my BG, whether I notice any exercise-related changes, and the potential side benefits. If the BG impact is small enough to keep things within generally "normal" levels and I notice some definite exercise improvement, I'll probably drop the Met long-term. If BG spirals out of "normal" orbits or if the exercise improvement doesn't seem significant, I'll go back on it. Either way would be just fine for me.
From my point of view, you've done your experiment and reached certain conclusions. Good on you for making the effort! There's no question of "failure".