The problem with that idea is the RCMP have shown us they will gladly turn thousands of Canadians into paper criminals by deciding a gun is an AR variant after a bunch has sold. While the FRT is NOT required to manufacture and sell a gun, without an FRT you have no way of knowing the lab won't be deeming it a named variant, and good luck selling more than a handful without promising to refund the purchase if the RCMP calls 'em illegal. As far as I am aware the RCMP doesn't need to be submitted a sample to give a gun an FRT - what I am getting it is if you forgo getting the FRT yourself, there is nothing that I am aware of that would prevent the RCMP from issuing an Prohib FRT for it down the road.
Simply put, there is a lot of risk involved in making a NR Semi auto given the current political climate, and R&D on a novel semi auto design is not a cheap undertaking. It is just not worth it for most companies, especially after the RCMP has decided to change the FRT on guns that weren't specifically named in the FRT like the fine guns that ATRS has brought to market.