Oh yay, more comparisons to Senna.
Is Lewis as good as Senna at troubleshooting and designing cars? Probably considering neither of thems a gearhead, ie. spends every waking moment near an engine, and Senna dropped out of Business in college and Hamilton went to CATS. Knowing there's something wrong with a vehicle and figuring out what it is and how to fix/improve it are two entirely separate things. There's lots of anecdotes like the ones you referenced but lets be clear, in the vast majority the driver just said there was an issue and team found and fixed it. On a very basic level, most drivers should be able to identify issues with a road car coz when shits breaking down mechanical stuff tends to make noise, move, shake, rattle and roll, but I generally wouldn't recommend the average soccer mom to go repairing her own fan belt coz she hears it squealing like a stuck pig.
If you are going to find people with that skillset it's probably further down the order and further back in time because as F1 developed the requirements to identify and fix your own **** became non-existent in F1 and I'm pretty sure what Nando is going through at Dakar is quite an experience for him. While I'm sure Lewis, or any other drivers, feedback is greatly appreciated I'm pretty sure none of the engineering teams have been handing drivers wrenches in the last 30 years, except maybe Schumacher coz he'd hang around after hours and nobody else had time to fix the coffee machine I exaggerate and kid obviously but let's stop and give some credit to the guys who design, build and fix the cars rather than giving that credit to our personal racing idols as well.