Absolutely.. There are some lenses on emount that can’t resolve the max level of detail from the A7RIV’s sensor and that is “only” 61 mp. One such example is my 85mm f1.4 GM, it renders a wonderful image but its soft on the A7RIV even at normal viewing distance on my monitor. Sigma’s 85mm f1.4 Art DG DN however resolves fine detail much much better its actually not even close.Even though I fully agree, I still think it would make sense to have the best possible lenses in order to exploit the sensor's potential.
Michelin Pilot Sport tyres are a bit of a waste on a Lada.
To resolve 100mp+ I hope Canon has already designed their glass to do to.