I find "experience" an odd word here. My browser is a tool, not a theme park or spa day. I want it to do work for me, not delight me. Perhaps I am misunderstanding "experience"?
An experience would be having a track day at Silverstone, not opening Safari.
Everything is an experience with Apple customers. Even opening their wallets wider every year.
Maybe we're both misunderstanding, but I think they meant "User Experience". Surely you agree that this is an important consideration in software development?
Yes that makes much more sense. User experience is possibly the most important thing - what else is software written for?