because they try to make it 'simple' for their target users at the expense of others?

'often JPEG' is the phrase note... so you have to ask who are they aimimg at

if you want alpha regardless you have to download, not copy paste; if you can't [easily] download I guess maybe the argument is you should not be doing it

what irritates me is that the program automatically assumes it knows what should be optimised to JPEG.. no no no