Reconfigurable Intelligent Surfaces (RIS/IRS) research area has received too much hype by academia, but very little attention from Industry and telecom companies around the world (except for ZTE, which is doing something not really exactly IRS, but they call it IRS to benefit from the insane hype going on in order to market and promote their products).

So, if anyone knows the reason for this, then please share your thought with the research community to provide the researchers with new insights and help save them time, effort, and money.

My humble thought is that the reason why RIS/IRS didn't get the attention of companies is because of the fact that most of the research related to Reconfigurable Intelligent Surfaces (RIS/IRS) is built on top of many impractical assumptions.