Changing temple promises

Over the years the temple ceremony has changed in more ways than just when you stand up and when you switch shoulders. Up until 1990 the temple ceremony contained a promise to slit your stomach and spill your guts and cut out your tongue if you revealed anything from the ceremony (Here's the former ceremony as documented by Thinker of Thoughts https://thoughtsonthingsandstuff.com/pre-1990-temple-endowment/ and here's video proof of Jeffrey Holland admitting the temple did have the penalties https://www.youtube.com/watch?v=4jyU97I12AQ). Then a year or two ago the women stopped having to promise to obey their husbands as they follow the lord and can just obey the lord directly (https://www.sltrib.com/religion/2019/01/02/lds-church-releases/). So, if you went to the temple for your self in 1989 do you still have to kill yourself if you reveal anything even though people for the past 30 years haven't had to make that promise? If you went for yourself before 2019 and promised to obey your husband do you still have to do that now that women can covenant to obey the lord directly? Why do some people have to obey some covenants but younger people don't have to obey those same covenants? How can God claim to be the same yesterday today and forever but then offer different covenants and require different promises from different generations of people? That, is not an unchanging God. Finally, for a God that claims to do everything in the light and nothing in the darkness (2 Nephi 26:23), why did I have to learn about this from the internet? Why wasn't the church or god open and honest and straightforward with the changes that were made to the temple? If it's no longer necessary to kill yourself for talking about the temple then why can't the prophet just tell people exactly what the changes are and why there are changes and whether or not the changes mean that people with old promises are now bound by the new promises? 

It seems clear to me that the church is run by men and not god. You can find information, including videos online, where people talk about surveys they did for the church (Like this by NemoUK https://www.youtube.com/watch?v=Cxrf37mTfL8). The church changes according to the the times, the church is typically 20-40 years behind the times according to Jeffery Holland, because it is run by people who are typically 20-40 years older than the average member.

Here's the church's website with links to the video where Holland admits the church changes over time https://newsroom.churchofjesuschrist.org/article/area-devotionals-february-march-2021

Why have all the videos been taken down? Is it because Holland said something phenomenally stupid? Or is it because Sister Cordon lied about being poor? Look at her husband's LinkedIn, he's held positions like Director and Senior Director at Adobe and Domo, in those positions he's making at least 150k a year. They aren't poor, https://www.linkedin.com/in/derek-l-cordon-968b10/

Here's a link to the video where Holland talks about the church changing, Thinker of Thoughts kept it so it wouldn't be lost https://youtu.be/l3Aaf29dDhA?t=182