Time period weapons vs time period armor

[Nathan Ross]

Lorica Segmentata... was... just as resistant as renaissance plate armor.

Late Medieval Chainmail... wasn't as well made as Roman mail.

Are these sensible comparisons? Renaissance plate armour covered the entire body and was built to withstand pikes, poleaxes and even firearms. If it wasn't any good at doing that, I doubt if people would have bothered wearing it. Would Roman torso armour have been as effective on the battlefields of Bosworth, Flodden or Pavia? I doubt it...

And I have yet to see any evidence suggesting that medieval mail intended as main body armour was inferior to the Roman version!