Because for me it misses the point entirely, but answering your question directly: if you need some kind of “enterprise level” support you just have to “trust” some company, you have no choice, for full paying customers red hat is still ok and SUSE will fulfill the remaining needs. But if you don´t need extensive third-party support and don´t wanna be held hostage by the goodwill of some bullshit corpo you should be using Debian for a long time.