Dave Filoni said he was going to wrap things with this final season, before he was going to move on the secret project that Disney has kept quiet about for a while. I didn't knew that the Scoopy Gang's homeplanet was going to be so heavily involved as they had no choice but to leave it to the Imperial hands.
In absence of rebels main tools for that corner of galaxy the Imperium has been extremely busy. The most shocking fact is that they're strip mining Lothal for all of it's valuable resources, and while they're doing it, they're destroying the planet. What is surprising is Ezra's connection to the planetary spirit, which manifest around as a trio of highly intelligent Lothwolves. In other words they are Force Spirits.
To the movie audience, the Force Creatures haven't even made an entrance, but for us these super powerful beings are becoming a norm. I wasn't surprised when the trio used power to transport rebels core members to another side of the planet, because in their universe it could possibly happen.
Yoda and other Jedi masters never talked about it. The Sith don't have a clue, but if Kanan is the Grey Master and Ezra his apprentice, the Greys has most knowledge about these things outside Anakin's experiences in the Force dimension. For our knowledge he and Old Man Kenobi are the only people ever to meet true Force Gods during the clone wars. But using the Gaia theory as an analogue, Lothal has a great spirit living it, and so did the Chopper base, in form of Batu.
The Lothwolves however talk very differently to Kanaan and Ezra as they've been involved into the history for a long time. Possibly through the whole human existence on Lothal. The walls are telling the story of Ezra's ancestors, but in the same time they speak the history of Jedi's.
If you look closely on lower left corner you see Yoda on the wall. Which begs a question, what does he really know and what he has forgotten or what the Force hasn't revealed? The intriguing bit is that Force knows creatures true names as the Wolf called Kanaan with his real name "Doom" before he departed and left the pair alone in the ancestral home.
Thing is Lothal is beyond salvage. It is truly beautiful planet, but at this point, there is less hope for it then there is hope for Mandalore to survive Emperor's Wrath. Funny thing is that the Emperor is utilizing the Mining Guild's Ore-Crawlers to build material for his ultimate weapon, the DeathStar.
It is a sub context they never mention, but it is quite obvious that they're doing to feed something massive. Tie-Defender project is just a side node. The Imperial Factory would have to be humongous to use all that material for creating Imperial Navy a brawler. One that might had been useful, if it had been utilised in the battle over Lothal.
Hera's mission through the blockage with two dozen fighters was always a suicide job for the most of rebel pilots. Grand Admiral's Thrawn's fleet has more vessels than what the Emperor used to shield his "moon" over Yandor. The planetary entry itself against swarm of tie fighters was the last tick.
She shouldn't have ever planned that mission, but leave Kanaan and Ezra behind the enemy lines. In Lothal that line is too deep. The only real choice rebels has is to use capital ships and tens of thousands of troops to relief that planet. But that's the thing, the Rebel command doesn't have numbers or ships to do any major operations. So losing all those X and Y-wings on this foolish mission must hurt rebels ability to do anything serious for a while.
What is surprising is that the Great Spirit knows this as it uses the white wolf to stop Kanaan from rescuing his loved one. Maybe the Force is like time, it has no beginning, no end. But the creatures that live in it can use to manipulate present events. Almost as if Lothal is saving itself by saving the rebels and their force users.
Whatever happens I think Lothal knows it's doomed.