Learn to actually tell what's meaningful and what isn't, first. Growing hair on mice, who do not possess baldness nor human genes is not impressive, you are correct, it's sh*t that's been happening for decades and rarely translates to humans at all.
Cloning a hair follicle onto a fully nude mouse using human cells and implanting it, growing natural characteristics, density and full hair cycles? Never been done before until Tsuji/Stemson published their pre-clinical data. The skin might be different, but these are human cells. Soon we will have the outcome from using pig skin, more akin to humans. I see little reason why this won't translate if that research is a success. The bigger question marks will be quality and durability.