If I understand it, your premise is, if the new rules are written so that it is at all legally possible for a current over 60 to return to a window seat (which even DW thinks is a remote possiility,) screw him, he's old so keep him out of the front seat.

So, how do you feel about the guys who hit 60 at the other carriers with no back seat? Do you support their right to reclaim their jobs and seniority? How about our over 60s who wanted to keep flying but were presented with the choice of having a bigger retirement check than they could make as an S/O and hence, for economic reasons, retired?
If retroctivety is approved, I don't think it's a stretch to throw these guys in the mix. The feds have publicly stated that these guys and the over 60 S/Os will not go back, why not fight for all of them?