Intel is also the most used processor in the market at the moment, once that balance shifts, more attention will be paid to AMD processor so we'll potentially have more vulns uncovered.
Way more shit stuck to Intel for one reason. The speed advantage Intel had been lording over AMD (Besides compiler shenanigans) was all the corners they were cutting with there speculative execution, et al.
Amazing timing that; AMD closing those benchmark gaps and the mass meltdown mitigations in Intel products... all in the same decade Intel was court ordered to fix their unfair C compiler. Intel's domination is simply over...