If Panerai used the Omega/Blancpain FF styled insert. People would also say no innovation and that just ripped off someone else's design.
Panerai is an company whose history is based on a couple of case designs - Luminor/Marina and Radiomir. If the company started making round cases or retangular cases. People would also say they are losing their way and trying to be something they're not.
Gold cased models are not really Panerai, but it's something to attract those they may not have bought otherwise and small 40/42 mm Rad models in gold are sized enough to pass as a dress styled watch.
I think some of the new exotic type movements are overkill, but they're created to give the company better cachet in the manufacturing world and to be taken more seriously.
The company is almost similar to Rolls Royce.
There's nothing RR can do to really redesign their cars. The grill is RR and no real way to reshape or redesign it to change the shape of their cars, so they always look the same. They can change the interior or redesign the motor, but the outside and grill is what makes it distinctive and defines it.
Panerai can only go so far with the current case designs and that leads to little in the way of innovations lest they be called copycats and start looking like other watches.