As said, its for weight distribution. The front rows are blocked for everyone except golds (we must weigh less

)
but I am Gold. Seatmap at MMB and OLCI showed first few rows all full.
in the end, 1D&F, all of row 3 and 1A were empty. and quite a few more behind me.
So why didn't those show as free if they are blocked for weight / trim purposes but available for golds?
more of an 'academic question' - was happy with 2A and am happy with 2D on the E90 return but just confused as to why it is this way.