I got started in this a few months back myself and I have to say I can see why it's grown in such popularity. It's rather easy to get started. The tutorial could be a little better however as I did find myself googling youtube videos like yours at first lol and still do at times.
But this also shows with a easy popular game like this which reminds me of very popular games like harvest moon for example that a blockchain can seriously thrive from one successful application. It's why I feel blockchains need to be very supportive of their native applications. BTW great into and structure to the video! I ended up watching all 20 minutes of it you'd done a heck of a job with it and you can see the amount of time invested in editing etc.