Freddy should be able to transport to the exit gates ad well

So if you want a logical explanation these are my thoughts and my personal opinion. Once the exit gates are powered the survivors become less fearful or even lose their fear of Freddy altogether as all they have to do is open the exit gates and walk out. So with escape now becoming a reality they become filled with courage and determination rather than pure fear. Which Freddy's power is based on his victims fear for the most part. Keep in mind that his victims were very young teens and kids and not fully grown adults who probably have even more control over their fear than a child.

In the first movie I believe, Nancy turned her back to Freddy and lost all of her fear towards him which in turn caused Freddy to lose all his powers and actually fully disappear. Although Freddy in the real world is still very dangerous and of course he can still kill he is no longer an immortal being and you can now fight back against him which Nancy also did by smashing a lamp over his head and stunning him.

So based upon the movies and Freddy's actual powers it does make sense for him to get weaker or even lose some if not all of his abilities when the exit gates become powered. Especially with more than one or two survivors remaining as now all they have to do is keep him distracted or fight him off per se and its now 2,3, or 4 all focused on defeating Freddy and with the more people still alive the less fearful everyone becomes of him.

So him losing his teleportation ability in reality does make sense.

Freddy is a low effort killer even as of now, he's just there to use if you want to complete a challenge or you can just play him to get a guaranteed win. That's how easy it is to win as freddy, it's really annoying to play against freddy since he can teleport from generator to generator. if anything Freddy needs to be nerfed with his fake pallets and teleportation, there's only been times when I've been lucky and won against freddy like about 5 times or so.

I think Freddy should also be able to fly. And maybe time-travel too.

Because the Entity said no.

Seriously though, he's got enough in his kit, he doesn't need to be able to show up at the gate on people, gotta give the Survivors a chance to get away. With gen teleport it's a 1 in 7 chance to find a survivor (base) the gates would be a 1 in 2, or 50% chance, which is just too much for his base power. Maybe if it was a pink add-on, but even then I feel it would cause issues.