It's not technically difficult, it doesn't require a particularly high level of fitness, it's just pointlessly dangerous. A substantial proportion of Everest climbers have negligible mountaineering experience and no real interest in the sport, they just want the bragging rights. You pay your money to an expedition company, you follow their instructions and they get you up to the death zone; whether you make it back to base camp is in the lap of the gods. About one in twenty people don't make it back. The only people I feel sorry for are the Sherpas.
This place is not a place of honor... no highly esteemed deed is commemorated here... nothing valued is here.
https://en.wikipedia.org/wiki/List_of_people_who_died_climbi...
I wonder if the overcrowding has now increased the danger factor appeal?
Getting to the top of Everest by jumaring up fixed lines while sucking down 3x the volume of oxygen Hillary and Norgay used is high risk tourism.
It used to be one team was allowed a permit per year, but has since evolved to be a tourist mecca:
http://www.alanarnette.com/blog/2018/12/17/how-much-does-it-...
It's certainly an expenditure of effort and resources, which ought to require a an impressive accomplishment to justify it, but tasks, however expensive and/or difficult, aren't accomplishments, only (at best) the cost paid for accomplishments.