Every day users? Probably not many. It forcibly disables lots of nice-to-have features.
But users who need a highly secure phone? It’s entirely possible to use the phone without media embeds in iMessage, or shared photo albums, or websites loading in 900 fonts. It’s a trade off likely worth making in some situations.
You can make a shared photo album with family members. It’s everyone else that is problematic with the feature enabled. In my case I only want to share with my wife and son so it wasn’t a detractor for me.