I cant do shit against a 279 anywhere in something like a ZA-35, and running wont always save you. Against aircraft its similar - yes, there will be times you cant avoid it, but you can still counter it with SPAA/CAP, and migitate its impact by being smart.
Technically? Yes. However, air generally aims for the easiest targets, and making yourself an inconvenient target heavily reduces the chances of this.
That is, admittedly, true. However, many of those tanks trade it for other capabilities, and even just shooting at them can reduce their accuracy/desire to bomb you, at least when you fire on their attack run. Hell, even shooting your main gun can help somewhat.
In this case, limiting the problem does mean it gets fixed. Yes. There are going to be some times where you cant do anything, but when facing tanks the same can happen. TO is a good idea in theory, but it would split the RB/SB playerbase and create massive balance problems for AB, all while not bringing in many new people.
As an aside, I do want to firmly state that I honestly dont much like CAS - it can be annoying as all hell sometimes, and there are a few times where I do just die. I dont really mind this, and I would rather fix the issue and make everything viable then simply shift it away. I aint a CAS defender, I just have a rather… different perspective on the issue.
Also - one other thing that needs to happen is a fine going-over of GRB aircraft BRs, as this -
Should not really happen. Something like a P-51 or P-47 w/bombs should not be at the same GRB BR as the J26, for example. Ideally this would also come with a rework of ARB, as its a fairly flawed gamemode at the moment. All aircraft need to be viable in it, not just fighters.