It would be inappropriate for me to say...let’s just call it ‘musical differences’.
I think their sound has inevitably changed but I’d definitely say they are at least equally equipped instrumentally (being honest, I’d go further than that). The only thing males can’t easily replicate is female voices but that just means an evolution of their music and hopefully people listening will ultimately view this as a continual improvement.
‘Pretty People’ and ‘Gentleman’s Touch’ are good examples, IMO.