That is a good point. However, for someone like me, who doesn’t have your experience with elite runners beyond what I’ve picked up as a fan, do you think it’s a bad thing to use the Mureika calculator to get an approximation? I don’t believe in ‘basic’ times, but I will occasionally plug some numbers into the calculator to get an idea of what might have been, and take into consideration things like track (if known) and weather conditions. I would expect using it in addition to my gut feeling, would be more accurate than my gut feeling alone.
A agree about the 200m adjustment - it is unreliable for all the reasons you’ve given, in addition to the added complexity of not knowing wind direction, something that is very important when considering 200m times.
I would just look at the comparative results if you can and only think about tables when you don’t know any of the runners and their history (improvement expectations, peaking etc)