You still can get triples, even up to SLX level.
So no reason to panic.
Just make sure your frame and tire clearance works for it. But that is not Shomano's fault.
Ultimately bike manufacturers are the largest purchasers and make decisions. But some good touring bikes may still come with triples.
A 2x10 or 2x11 should give you all the range you need. A 3x10 or 11 just will have too many redundant gears.