the entire licensing process - the complexity due to IDCCs portfolio, the strategy due to current agreements in place and knowing what you sign today will effect rates wanted/expected by potential licensees tomorrow, when you stop negotiating and decide to consider taking on the expense and time of filing a lawsuit...is something that the moaners really don't appreciate.
Expediency in signing a licensee, isn't necessarily the best thing for IDCC if it sacrifices your rates and IPs market value.