It is available in the Tampa area OTA.
I have not seen a swarm of posts about it being gone here. If DISH is right they have lost a ton of eyes over the last few years.
https://nypost.com/2018/07/09/univision-could-see-its-largest-decline-in-revenue-ever/
By the way, for the record, there are many other good Latin networks Dish carries from all over. Here, we do not have a Univision station. We got one off Dish, but of course that is being blacked out. I still have my big dish, and there may be some affiliate on some bird available. Not knowing a lot of Spanish, I generally do not watch the channel.