That's a good question.
I'm assuming Evora and Emira clutch feel and weights will be similar, but perhaps there have been some slight adjustments given the "everyday driver" nature of the Emira which would lend itself to having a lighter clutch feel.
I haven't personally driven both back to back (Evora and GT4 manuals that is), but there are mixed reviews on the Evora clutch from "a bit heavy" to "perfect with great feel". As with anything there is an adjustment period, so beyond the force/heaviness aspect there's also the feel aspect of it. There is also personal preference.
I've seen a few reports of the GT4 clutch being "too small" and "slipping from 2nd to 3rd" after about 10,000kms, so I would say its undersized for the power it makes and may therefore be lighter. Those on this forum who have / had a GT4 might want to comment as this is anecdotal.
Never heard of any Lotus installed AP racing clutch used in an Evora or Exige V6 have any issues regards to slippage or premature wear. They seem to be bullet proof too and last a long time if driven sensibly.