OoO execution is what (in the Pentium Pro and successors) delivered the death-blow to the RISC architectures of the 1980s. x86 as an ISA hasn't been significant for performance for over 20 years now.
Oh look! Wheelchairs exist! Smash up my legs with a baseball bat!
You are confusing palliative measures that Intel have used to engineer themselves out of a corner with substantive benefits. Out of order execution is not a benefit but a cost that has to be paid to get performance out of the x86 architecture. It's the same across the board - for example modern x86 chips have dozens of hidden registers that can't be accessed by the instruction set. Ask yourself which can do a better job of register allocation - a compiler that can take its time and do the job once considering the code as a whole, or a few transistors that have to do the job each and every time, in a matter of nanoseconds, and considering only a handful of instructions on either side? The answer is obvious.
Similarly ever longer pipelines are not something to brag about - they are themselves evidence of a real problem. As the pipeline gets longer the number of problem cases increases exponentially, problems which consume silicon and time to address. That's silicon and time that can't be used elsewhere.
Those and similar features are not benefits in and of themselves, they are the price that has had to be paid to wring an acceptable level of performance out of x86. That price is not just financial, it consumes design effort and surface area that could easily be used more profitably elsewhere. Why have only 4-8 cores on a chip? Why not fifty or sixty? It's perfectly possible if you don't piss away area on things which from an engineering view are unnecessary with a smarter design at the outset.
Case in point: Sun's Niagara ten years ago. Designed with a fraction of Intel's resources, fabbed on a more primitive process, the result was the fastest processor bar none at the time. It offered a level of throughput and parallelism x86 could only dream off. The opening premise was to throw away a lot of that complexity you cite as a good thing and see what could be put in its place. Intel have the deepest pockets in the industry and can invest to get themselves out of sticky situations if need be: that does not mean it is a good idea to get into those situations in the first instance.