It won’t hurt to go to Amazon (at the link provided above) and vote “Yes” for the positive, five star reviews (two at the moment) and “No” for the negative reviews (none at the moment).
Even if you can’t do a review yourself, that always helps.
I did go to Amazon and used the request to add this book to those available on a Kindle. Since I made the change to my Kindle Fire it is the only way I purchase books these days.
If this becomes available I will buy it.