The Seven Fundamental Tenants of TST removed from any other context are pretty decent guidelines for life. #4 gets a lot of flack, but I feel like it's counterbalanced by #7.
So people don't have to Google:
I. One should strive to act with compassion and empathy toward all creatures in accordance with reason.
II. The struggle for justice is an ongoing and necessary pursuit that should prevail over laws and institutions.
III. One’s body is inviolable, subject to one’s own will alone.
IV. The freedoms of others should be respected, including the freedom to offend. To willfully and unjustly encroach upon the freedoms of another is to forgo one's own.
V. Beliefs should conform to one's best scientific understanding of the world. One should take care never to distort scientific facts to fit one's beliefs.
VI. People are fallible. If one makes a mistake, one should do one's best to rectify it and resolve any harm that might have been caused.
VII. Every tenet is a guiding principle designed to inspire nobility in action and thought. The spirit of compassion, wisdom, and justice should always prevail over the written or spoken word.
I'd say respecting ones freedom to offend is important.
While I can respect that someone has the freedom to say offensive shit, I don't have to respect them for exercising that freedom and can call them a fucking idiot, thus exercising my own freedom to offend.
4 is essentially paraphrasing Voltaire. Belief that offending someone is a violation of their rights leads to authoritarianism and censorship. 4 says you can be a dick; 1 says you really shouldn't be and 6 says you should apologize when you are.
Most of the shade I have seen thrown at IV is based on somewhat overly Libertarian quotes from the founder Lucian Graves. The organization as a whole leans extremely left, so some were caught a bit off guard. I'll have to dig it up, it was years ago, but also Lucian is not a perfect individual (nor is anyone).
Tenet 4 has to exist to cover their own asses. TST exists as a means to build a counterpoint to the reach of other religions within public services, so the snowflakes perceive it as "existing to offend" religious (christian) people.
Where did I say TST isn't a religion? TST can be a religion without depending on belief in a deity (or deities) or some other omnipotent being. That doesn't make it a non-religion, but it certainly does oppose most other existing religions.
From their website's FAQ:
The Satanic Temple believes that religion can, and should, be divorced from superstition. ... To embrace the name Satan is to embrace rational inquiry removed from supernaturalism and archaic tradition-based superstitions.
Your conflation of my statement with delegitimization of TST as a religious organization is quite a reach.