Yeap, 1-2c. Major flaw, lol
You see, you adding your imagination again, nobody said it’s more than 1-2c average, from beginning, when igor invented washer mod, it’s all about the hot core hotspot throttling when load ramp up being unsuppressible, and it is something out of oridinary without any benefit, AKA, flawed.
Fun fact is all your claims about memory issues comes from ppl cannot tighten up the contact frames evenly and properly or over tighten one corner excessively, a lot of ppl successfully get same or better memory OC after using one. And basically none have issues using washer mod instead of the CF, which is what now Intel does. If the washer mod is only able to reduce the temp by 1-2C, IHS comes back to historical minor bend, and no adverse effects on OC, isn’t that a flaw fixed? MSI even showed the old ILM with stock base plate (part of ILM) under old design bends itself, so the old part, premium or cheap board all bends
The RL-ILM is basically just a washer mod so if Intel really had a problem with the ILM they'd use one of the superior designs they used to have or design something entirely new. I imagine that this mechanism was largely driven by motherboard manufacturers who would rather people didn't remove the ILM.
I doubt this will make any sort of substantial difference in operation on any of the boards it'll be installed on. The most likely place this would make a big difference would be on lower end boards that don't have as many layers/reinforced backplate. It will of course also make a difference when using a cooler that has a flatter coldplate though I imagine most people in that situation would have zero issues installing a contact frame.
Could be partly, but there are small differences here and there, more than the "simply a washer mod", like "
Perhaps more importantly, the new ILM also adopts a flat load plate (compared to a slightly curved load plate in the case of LGA1700 POR-ILM)", and when I first learned about the 1700 bending (wasn't suspecting that sort of silly issue for Intel back then, I upgraded directly from Sandy Bridge to Alder Lake), what I was aware was it takes a lot more force to clamp it down compared to Sandy bridge. But on the various videos I looked, someone filmed the base plate, which is a 1mm thick metal visiabaly bends, if that bends, the extra 5 layers of PCB won't help, and even with a undeformable backplate on, the clamping force focused on the 2 fins on the IHS would be even higher as now the base plate didn't absorb part of the force applied, so the IHS and CPU PCB would defore more, not less.
Into why they basically slightly modified the ILM vs re-do the design, it's an easy to make commercial choice.
1) The old LGA1700 ILM, though flawed, isn't something majorly impacting performance, momentarily throttling one core during sub second peak is more of a user comfort issue and say, maybe reduce things like R23 scores by 100 or so, so it isn't an major issue, but they can't roll out this back then, coz if they do, they will have to recall and replace all boards out there and the CPUs with extra deformation yet works.
2) As shown in the MSI slides, the RL-ILM did changed 3 (hinge frame insulator, load fram insulator and the load plate) out of 10 component (including the will be removed cover), so it's essentially re-designed or modified 30%, as for why not re-speccing all parts, it's simple, cost. both re-tooling and re-inventing the wheel, when during the 2.5 years+ of 1700 smart guys like Igor have did the R&D for them and in internal testing, it works, showing a constant improvement in temperature, less bending and no adverse effect on the CPU performance, why not just borrow the idea and add an extra improvement on new generation roll out? just don't use the washer from stores around the corner, make some proper parts to act the same and flattens the load frame and bam, weeks of R&D saved, temperature improved and ppl are happy.