Note that Family Romance is the company GP's article is about. It may not be entirely fake, but the stories that made the news were. (and both your links are about that company)
You'll have to admit it's hard to take any of these seriously when they are all about the same company that has been reported to embellish things to put it mildly. Well, except for Max D. Capo's, he used a different service.
It is very real:
ファミリーロマンス社【家族レンタル】家族代行・代理ならファミリーレンタル専門 https://family-romance.com/family.html
「他人になりきる」代行サービスが人気博す「叱ってほしい」という依頼も https://news.livedoor.com/article/detail/19410877/