I don't know anything about MTF charts and the few times I've read the results it never matched up in the real world.
The Contax Zeiss lenses I use don't rate that high by most reviews, but they're sharp, almost too sharp but I think they're pretty and pretty is what it's all about.
Also I've never understood that a certain lens has to be used for a certain genre. Sure if your shooting retail fashion you probably won't to compress a subject a little more than normal,
but like anything in life, there are no real rules.
This was shot with an Aptus 22 using a 45mm Hartblei which no one would consider a traditional portrait lens
This also with an Aptus 22 with a 80mm Zeiss. and the next with a Zeiss 80mm on a p30+
And this with a Leica 24 on a M8 which means the crop makes it something like a 35 lens on a full frame 35 camera
Whatever looks pretty to the photographer works, the rest is just numbers.
To some the numbers are important and I can respect that, but to me it's just what it looks like that matters.
In reality, if you want to subtly change the look of a lens, if the scene permits, just pull back or get closer.