Why is Adobe Acrobat not in the same league as the rest of the Adobe suite?!

To put it bluntly. This program is horriable!

How has Adobe let Acrobat fall behind the rest of the suite when it's argubally their most well know/used product?

The comment funtion is by far the most frustrating, complex and un-user friendly tool-set I have ever used in a program!  In gernal the program is exreamly buggy and slow - don't get me started on the network issues!

Why, how has Adobe let the likes of Revu Bluebem over take them here? This program needs a complete overhal!