Are you implying that because you know this 210 soldier that can kill 75% of 220 twinks, that there's no problem between 207s and 220s? Unless you can claim it as a generality, it's as strong an argument as 'I know this NR 165 Agent that can pwn any 207 NT, therefore 165 vs 207 is fine'. Wait, now that I think about it, if you can claim it as a generality, it's a stong argument on why 220s need more love when facing 210s.
What should be the generality: X-level is at a severe disadvantage against 220s, but still can be effective against them in numbers or strategy. I don't believe 207 is that X-level due to the behavior of 207s, that behavior is in turn based on of the power difference between them.
That tells me nothing of what differentiates 207s from any other twink level. Everyone who's outnumbered by 3-4 upperrange twinks will try to get away, but what makes 207s so special to meep in the other scenarios where any other twink level wouldn't?
Again, how is that specific to 207s? Any lvl 100+ fixer can meep and fgrid back to the site. How does it justify that 207 vs 220 is okay?