Unfortunately, iGPU pass through is not that straight forward. The hardware, processor, and IOMMU groupings can all be a factor in getting iGPU pass through to work, Can you post a link to where you have requested help on getting it to work?
Did you look at this Spaceinvader One video?
This is not how Unraid works and is not likely to change any time soon. Just because people ask, doesn't mean it's just automatically going to happen.
This couldn't be farther from the truth and your comment is not very productive. I can understand you are frustrated, but just post your concerns and give us a chance to help you work through it. As I said earlier, iGPU is not just a straight forward thing that Unraid can just automatically make work. A lot of time has been put into iGPU passthroough and LT will continue to improve this feature, but with all the various hardware and IOMMU groupings based on varying hardware, it is not as easy as you seem to think.