Jon does acknowledge Ghost, although off screen. In the montage in Season 8 Episode 2, "A Knight of the Seven Kingdoms", Ghost is seen standing with Jon and Sam. Presumably they have had other interactions but just off screen.
The direwolves overall get little screen time due to budget reasons, in "Battle of the Bastards" I think the budget only allowed for the giant or Ghost. Also it is apparently hard to work with the wolves on set.
During our conversation, Bauer explained that the lack of direwolves in the last “GoT” season might have had something to do with the fact that regular wolves aren’t as magical to work with.
“The direwolves are tough because you don’t want to get them wrong, so we end up always shooting real wolves and doing a scaling trick with them, but the real wolves only behave in certain ways,” Bauer said.
Huffington Post, A Missing 'Game Of Thrones' Character Is Coming Back In Season 8
In fact in the same interview Bauer goes on to say the following which implies we should be getting more of Ghost in the following 3 episodes.
“Ghost does show up, and he does some ... he’s very present and does some pretty cool things in Season 8,” he said.