Sure, Dish has lost a lot of subs too. They were at 13.9 million in mid-2015 and are now down to 8.68 (not including Sling, which really isn't a comparable service). That's a loss of 37.6% of their subscriber base, which is pretty awful, but still not as bad as AT&T's 45% decline over the same period.
A cable TV industry analyst group's
report issued last Oct. said that the overall industry in the US only lost 9.5% of its subs over the preceding 5-year period, i.e. from mid-2015 to mid-2020. I'm sure there have been further losses in the year since, but still not enough to get anywhere close to either AT&T or Dish's level of losses.
So while the rise of cheaper and free streaming options like Netflix and YouTube have hit cable TV overall, it's been satellite TV that's really gotten crushed in the past several years, way beyond the hits that TV+broadband operators like Comcast, Charter, Altice, Verizon, Cox, etc. have seen in their TV subscriber numbers. Not having that double-play connection with customers hurts, as does the up-front 2-year contract. And satellite has higher customer acquisition costs because of the "free" professional installation that must be recouped via their monthly prices. And then a lot of consumers don't want a dish on their roof any more.
At some point, though, I would expect satellite TV to find its floor with rural customers who have no other good choice for pay TV, combined with longtime satellite TV customers who have other choices but love it or just stick with it out of inertia.