LOL. I actually don't need to answer any of these rhetorical off-topic questions. they have no relevance to the arguments that I've been making against Imperial forces in this scenario. it's not a count against modern aircraft that they still have bubble canopies. nobody has argued that modern fighters have super-sensors that allow them to find, identify, and differentiate between thousands of alien objects and organisms beyond visual range. no, people understand that real-world limitations are applicable in the real-world easily enough. the through-line argument in favor of Imperial forces in this thread has been that the Empire is not limited by any real-world concerns or limitations at all.
with that out of the way: I'm glad that you appreciate the possibility that TIE fighters can be ambushed and shot down easily by WW2 aircraft while they are conducting low-speed, low-level ground attack missions.
this also means that those 8 shuttles and 12 TIE bombers are at a high risk of getting shot down too. remember, the declared flight speed of these aircraft inside of atmospheric conditions is about 528 mph. that's 40 mph slower than the Me-262's best speed in level flight. (it can dive even fater). most high-end fighters could actually catch these shuttles at the end of a medium length dive. moreover, the shuttles have to bleed off a considerable amount of speed when they turn. so, they won't always be able to fly at their top speed during combat operations.
which lease me to another point. the shuttles have deflector shields... but the TIE bombers do not. if TIE fighters can be shot down by WW2 aircraft, as you have implicitly admitted too... then the bombers, which are even slower and bigger targets, get taken out as well.
if a Me-262 is starting from an altitude of 10,000 feet it would be VERY EASY for them to simply point their nose down and start a diving attack on this shuttle as it mills about blowing up targets on the ground.
since shields have no feats for protecting against mid-air collisions against objects of significant size.... that means that pretty much any high-end fighter with a pilot prepared to throw his life away to destroy a shuttle can take it out by a few basic methods. ramming it. flipping it off course. or pushing it into the ground. wing tipping and pushing techniques were used to force V1 rockets off targets. the same can be done to shuttles. I shouldn't have to explain the value of ramming attacks. it's a case of losing one aircraft in exchange for another. in this scenario the loss of even one shuttle is catastrophic for the Imperial forces stranded on planet earth.
speaking of low end showings... did you know what the most efficient and safest means for a fighter that enjoys superior speed, sustained turn rate, and climbing ability to shoot down a completely inferior aircraft is? it's called "slow down to just slightly above the speed of your adversary and follow them". this is a pretty basic and unavoidable law of aerial combat. if you don't believe me you can always look at Robert L. Shaw's classic volume "Fighter Combat" by Naval Institute Press. he specifically deals with this on pages 182 to 185. in this scenario TIE fighters can either be faster OR more maneuverable... but they can't do both at the same time in combat conditions. if they want to quickly shoot down an enemy aircraft they are going to have to slow down to the speed of their target and get behind them. this automatically puts them in grave danger of being attacked in turn.
one thing needs to be pointed out. 1944 was arguably the high-water mark for the skills of combat pilots in world history. at this stage we had thousands of pilots who had achieved ace status. Adolf Glunz, a member of JG26, managed to shoot down three superior aircraft inside of two minutes. he simply stumbled upon a formation as he came out of a cloud, found himself behind an enemy formation and reacted. he was probably able to do this because he wasn't using tracer ammunition. those neon green blaster bolts are actually a bit of a weakness in aerial combat. a lot of experienced pilots actually preferred to NOT have tracer ammunition included because it would give away their attacks.