In patents, quantity can matter more than quality.
A large quantity becomes (depending on which tack you wish to take), leverage in pressing for licensing fees from others (a trick IBM knows well), or a bargaining chip in dealing with requests for licensing fees from others. In either case, the alternative is litigation, generally aimed at busting the patent. Patent busting is expensive and time consuming. Multiply that by 882 patents (a pretty significant holding).
Of course, specific patents may be instrumental in carving out market space, it'll be interesting to see what's in there and how they can/will be used.