Are you actually suggesting that consumer protection laws should prevent businesses from cutting features and discontinuing products?
Of course not. But if, for example, you're paying for a deal where someone hosts your domain and e-mail for a year, and where the domain is to be held in your name so you can transfer it to another provider if you wish, you are obviously entitled to have that hosting for the year you paid for and to your escape mechanism with the domain name if either party chooses not to renew the deal later.
With a system like Facebook or Google Mail, you have little recourse if they decide arbitrarily to close the business down tomorrow, and you have no control over your identity on that system or what would happen to it after any changes.
Only if their terms allow that, and usually if they do they will allow for reasonable notice so you can move to another provider if you wish. Unless your hosting service actually goes bust and disappears, which is a risk with anyone you ever deal with, you should be OK with any reputable hosting service as long as you own the domain that is acting as your identity so others can find you.
Are you actually suggesting that consumer protection laws should prevent businesses from cutting features and discontinuing products?