It’s all too easy to write off the wireless efforts of Dish Networks, a mere 8 million wireless subscribers, in a sea of 362 million US subs – after all, what can a tiny $16 billion business do when up against the might of AT&T, Verizon and T-Mobile? But anyone who has followed the career of chairman Charlie Ergen will understand that he is all about survival, a value offering, and despite subscribers evaporating over the past year – in TV, in streaming and in wireless MVNO clients – the company still represents a threat. The US actually needs companies like Dish Network. Where else could it have dumped 9 million MVNO customers – which it did in 2020 as…