I suspect that features like fans going to standby or the printer shutting off after a print job timeout will be added. They have certainly been requested. Also, the enclosure should help also.
You also said in the same statement that the fix for free isn’t ideal and that the tool is becoming a toy. That means there is room for improvement to your fix. You spent $500 on a tool and it might take $15 or $30 to make it even quieter in a way that doesn’t require servicing… Seems like a pretty fair upgrade.
When I get my DynaMat in, I’m going to try putting it on the feet themselves and see if / how bad it compresses. Dynamat is dense enough that I think it will be okay. I’ve only had the printer for a day, so I’m not where you are at with it. Also, I don’t mind making an improvement to a product if I don’t have to constantly keep servicing it. I understand we are coming at this from very different directions. That’s okay.