I wouldn't say that it is unheard of in any sense of the word. It just seems as if old Charlie (and Crest) are just trying to be a nuisance and eek out as much extra cash as they can for themselves. It seems a ridiculous 11th hour play for them to be offering a paltry $240M at this point. For the record that's only 3 months worth of Sprint financing in its present form.
It just seems to me that these tactics regardless of the fiduciary responsibility aspect (which at present seem absurd) considering Sprint has been one of the few parties who has kept Clearwire on life support for most of its existence even while others pulled away. I didn't see Crest and the other detractors trying to bring in more investment capital, seek additional credit lines or obtain additional ownership rights and equity of any meaningful value in the Clear venture over the life of its existence.
Which brings me back to the obvious fact that like any gold digger, or disgruntled divorcee, they are exaggerating the worth of the cards they hold in an effort to eek out every last dime they can, regardless of whether the value was there to begin with. You can't say that the spectrum holdings are worthless because of the high frequency/limited range on one hand and then talk out of your ass and explain how valuable and massive they are on the other. Like any sane investor they want minimal risk and exposure while receiving a maximum payout and return on investment; I can't fault them for the most obvious and common investment business mentalities they have, but can honestly say that the over-inflated histrionics at the end of the CLEAR journey (which they knew has been a long time in the making) really do not amount to any rational sense. Clearly they see the deep pockets of Sprint's future (a la Softbank) and want their alimony (if we are sticking with the marriage/relationship analogy) to reflect a large chunk of those unrealized future earnings.
Poppycock, balderdash, rubbish, nonsense