Yes. But Namer is nothing more than a H-APC, not a fire support armored vehicle. They have tanks for this.
I think two points :
1- the key point is to continu to deploy Trophy ADS ;
2- when considering the whole net of Israël fire power (tanks+artillery+air cav), the Mk-44 is the right choice. It will complet the whole organisation at the right cost.
The interest in ATGM on Tsahal IFVs is not founded. They are no more facing huge well organised armored armys. They are facing man portable AT roquette/missile proliferation.