In the game of World of Warcraft, there are plans to take away the option of summoning pets from Marksmanship class after 20 years. Please leave the option to summon them in the MM spec for a variety or reasons, from RP to world content where having the pet tank mobs is prefered for a lot of people. Also a lot of people spent many years collecting their stable of hunters pets and don't want to change to another spec just to be able to summon them. Lone wolf was never meant to be the whole spec and was just an option before. Why force people to use it now?

Update:

Blizzard forum blue post quote:

Greetings, hunters.

We appreciate your continued feedback on the Undermine(d) Marksmanship update. We recognize that there is a community of Marksmanship Hunters who wish to retain access to their pets. While Marksmanship’s unique Eagle pet will continue to be the source of their pet utility, such as Master’s Call, Bloodlust, and similar effects, we think it is only right that Marksmanship Hunters be able to continue to traverse Azeroth with their beloved companions.

In our next PTR build, there will be a choice node on Improved Spotter’s Mark called “Unbreakable Bond” that restores Call Pet and associated pet functionalities such as Mend Pet, Dismiss Pet, etc. Additionally, this talent will improve the durability and damage output of your pet to better compensate for the potential throughput loss.

Thank you for your continued feedback and commitment to the Hunter class, and we’ll see you in Undermine(d).