Eh OW1 never had OWL balancing. Now it is more “yes bunkered down Bastion games are boring for the majority of players but meh who cares OW2 can have the fast paced fun”. Then there is also that Halt is going away so you might as well turn it up to 11 for the last hurrah.
Basically these are balance changes that do not care about balance or game quality but have a purpose in either giving some bad heroes a chance to be exist (or remind us why they dont) while the rest are likely getting people ready for OW2.