There's a huge difference there, in that information storage via cryogenic preservation is an at least theoretically valid basis. It's still "Step 2: ???" but steps 1 and 3 are compatible with known science.
That said, my only comment to this train of thought is that at least the building in the video takes up less space & resources than a pyramid.
Empirically, we're obviously way ahead of where humans were at the time of mummification, so I think it's a silly comparison anyways.
Depending on your values the scientific veneer may be more appealing than the religious one, but neither is founded in particularly strong observational evidence.
Step 3 is still very much not compatible with known science either, so as far as you can tell the success rate is the same as it was back then
That one Star Trek TNG episode from 1987 had this right. The accidentally discovered 21st century cryogenists are stunned to find their former wealth and status are irrelevant in Picard-era Federation.
I think the question at that time would be: “Do we bring these likely brain-damaged people into a world they can’t understand and which would cause them pain” — and the answer might be “No, that would be cruel”.
Some people already paid to maybe suffer that cruelty in the future, the same way some people already paid to go to the Titanic in an uncertified submarine and die.
There's an old saying "you can't take it with you".
Shabti are so common that they are the only actual artifacts you can export from Egypt without special permission/licenses. Most are going to be fakes or replicas. Some can be rather dull looking. The ones made out of faience tend to be fabulous.
There was at least some basis to thinking there was an eventual way to get there, even if now it seems cargo cult-ish