This is from a random website with no credentials that makes no arguments to back up its claim. It's meaningless.
>>Imagine buying a car and the manufacturer asks for an extra payment to unlock 100% of the braking power.
And this is a fatally flawed analogy that renders it useless. The situations of "hardware shipped that can't be unlocked until user pays" and "paying additional to support a feature that takes a lot of effort to develop, and actively takes more effort from the vendor to support" aren't remotely comparable.
Neither of these quotes support this position.
> The point is that "only large enterprises need or care about SSO" is completely wrong-headed and detrimental to the overall security posture of any business customer.
As to this - is there any actual empirical evidence that missing SSO meaningfully weakens security for small businesses, which are the ones that would actually care about forking over the extra for the enterprise tier? That doesn't sound very believable to me - small businesses are both disproportionately smaller targets, and also have much less complex IT systems with fewer logins to manage. I find it unlikely that missing SSO matters that much from them, and I'd like to see empirical evidence otherwise.
Also, there's nothing wrong for charging different amounts for different levels of security, assuming that that cost translates into actual effort (which it does for SSO). Normal people pay small amounts of money for physical door locks that are woefully insecure - the proposition that lock manufacturers should make their industrial and home locks cost the same would be pretty ludicrous.