Vanguard has been guilty of this as well. Its recent site redesign has been all over the place, and sometimes leaning heavily toward folks using its phone app (not that its phone app is very user friendly either; for example, checking what orders one has placed by account is impossible). It used to be that the website has a table view that shows almost everything I need to know about my holdings. Now, it takes a few clicks to find that info and even then, the layout is so sparse (mobile optimized) and hard to read.

Maybe I'm getting really old and just like to complain about this because I'm not very much used to this phone-oriented UIs.