It really isn't chicken and egg as such I think. Your saying a good system lets you hear a good recording. Therefore a good system , however constructed is going to do nothing to a bad one (remastered , bad pressing , apparently anything not Hi-Res etc )
Ergo , rubbish in , rubbish out at various degrees. Any part of the hardware chain is solely dependent on what it has to work with.
I think you are right up to a point but it's another audiophile mantra that you can polish the proverbial with hardware. A good recording makes the most of your system and a great system is not going to make the bad one better.
A balance of sorts but audiophile logic sadly fails at the first hurdle . The irony of taking care to system match while paying little heed of the source. I think a good recording requires less of an esoteric approach to sound than Mr Andrews and high Ender's would lead you to believe. Time and money is better spent on good sounding pressings that are discernable rather than using wavy lines on graph paper to prove a piece of equipments credentials. The reward comes from what you can hear . You can tell mono from stereo , vocals too far back in the mix or gated drums. Can you hear what a mains filter does or a directional cable , honestly experience such obvious plus and minuses based on what two amplifiers are doing a thousand pounds apart in price?
The same argument could be put forward for recordings comparing 2 different versions of the same, the difference are just a subtle, compare the difference between the Abby road releases for example, tidal and Spotify and so on. You're pulling at straws in regards to the equipment and placing it very low on the scale.
TBH if you care that much to purchase a mofi record then I assume you're pretty far down the rabbit hole in regards to equipment and suspect you have something that can make those records come to life. General Joe's don't buy Mofi records @50 -200 quid each. Heck, I heard someone moaning about a record costing 25 quid the other day!
A building isn't a building with just a foundation. To make use of that foundation the rest has to be able to support, no one piece in the structure of the building is any less important than the other. (chicken and the egg)
I'm not denying a great mix doesn't make a difference but if you don't have stylus capable of following the grove then its for nowt.
I'm also not saying the system has to be expensive. We live in a great time where budget tech sounds fab. But I chose to buy myself something a little nicer.
But as you're twisting my arm, the most important thing, if I had to nail down, would be set up and placement. Everything you mention just wouldn't be there, simple things such as a speaker placement, many here can't even get that right. Then there are other things like stylus care, alignment is critical as mentioned and so on it all just as important, granted some more so than others hence the comment on balance. Then you have the pressings themselves and they'll all be different as the mould wears, even mofi can't control that hence their limited runs. MOFI isn't just about the mix its also about QC.
There are too many variables to nail it down to the recording alone as I said above everything has to be able to support that recording and I'm not just talking about tech.
I could play a mofi record on a crossly all in one suitcase turntable sure it might be the best that thing could sound but its hardly showing that record in a good light. In fact, I know it won't be showing any of the virtues you talk about, BUT! its the right choice for someone.
lets put it this way I'd rather listen to a so so recoding on a perfectly set up and balanced (and im not talking about system match here) system then an amazing recording on a system tucked in a corner.
But if you really believe equipment is not that important to a good listening experience and it all boils down to mostly the recording, Buy that crossly all in one suitcase turntable. the supermarket has plenty in stock. No? i didn't think so.
There's more to it and you know it.