Some friends have websites. I encourage them to do. But they have them only to publish contact info, opening times, and a couple of photos of their business. What would be the best fediverse platform for this? Of course being able to post/toot news every now and then, is also a good feature.
Depends on your definition of tolerant.
If it implies adtech and trackers, then no. If it implies joining a random instance and spamming it, then no.
But any organisation is free to manage their own fediverse instance or get managed Mastodon hosting on their own domain.
So fans of their products can follow them and their webcare team can respond to questions.
Requiring companies to host their own instance is hardly tolerance. You also left out the part where many large instances would defederate before they even had a chance.
Companies small and big are used to have hosting managed for them. Websites cms-es etc, why would selecting a Mastodon provider be any different?
As for defederation: